Item Metadata in loc.gov Search Result Records

The table below displays the 216 metadata fields found from a sample of query result items across the 428 collections in loc.gov. These fields are returned in JSON query records using the loc.gov API. Additional item metadata fields may be found directly in item-level and resource-level records. For each metadata field below, one sample record was pulled from each collection on loc.gov.

Code at https://github.com/reliztrent/metadata-sampler. For more documentation about the loc.gov API and records, see Library of Congress's About the loc.gov API. .

For additional details, see notes

About the Field Samples Field Values from all loc.gov Collections
field name # of collection samples using this field (of 428) % of collection samples using this field data types found in samples is this field a list (multi-value)? max # of values found in sample record 10th-16th Century Liturgical Chants Aaron Copland Collection Abdul Hamid II Collection Abdul-Hamid II Collection of Books and Serials Gifted to the Library of Congress Abraham Lincoln Papers at the Library of Congress Afghanistan Web Archive Afghanistan, Iran, Pakistan and Tajikistan Government Web Archive Afghanistan, Iran, Pakistan, and Tajikistan Elections Web Archive African American Perspectives: Materials Selected from the Rare Book Collection African American Photographs Assembled for 1900 Paris Exposition African Government Web Archive African-American Band Music & Recordings, 1883-1923 After the Day of Infamy: "Man-on-the-Street" Interviews Following the Attack on Pearl Harbor Ainu and Ezochi Rare Collection Alan Lomax Collection Alan Lomax Collection of Michigan and Wisconsin Recordings Albert Schatz Collection Alexander Graham Bell Family Papers at the Library of Congress Alexander Hamilton Papers Alexander Hamilton Stephens Papers Amazing Grace America Singing: Nineteenth-Century Song Sheets America at Work, America at Leisure: Motion Pictures from 1894-1915 American Choral Music American Civil War Sesquicentennial Web Archive American Colony in Jerusalem, 1870-2006 American English Dialect Recordings: The Center for Applied Linguistics Collection American Federation of Labor Records American Leaders Speak: Recordings from World War I American Life Histories: Manuscripts from the Federal Writers Project, 1936-1940 American Music Creators Web Archive American Music Industry Web Archive American Notes: Travels in America, 1750-1920 American Revolution and Its Era: Maps and Charts of North America and the West Indies, 1750-1789 An American Ballroom Companion: Dance Instruction Manuals, ca 1490-1920 Ancestral Voices Andre Kostelanetz Collection Andrew Jackson Papers Andrew Johnson Papers Anna E Dickinson Papers Anna Maria Brodeau Thornton Papers Ansel Adamss Photographs of Japanese-American Internment at Manzanar Architecture, Design & Engineering Drawings Archive of Recorded Poetry and Literature Armenian Rarities Collection Associated Press News Dispatches, 1915-1930 Author Websites Web Archive Bain Collection Ballets Russes de Serge Diaghilev Band Music from the Civil War Era Bangladeshi Elections Web Archive Banking Industry in Southeast Asia Web Archive Baseball Cards Baseball Sheet Music Before and After the Great Earthquake and Fire: Early Films of San Francisco, 1897-1916 Benjamin Franklin Papers Benjamin Harrison Papers Bess Lomax Hawes Collection Betty Herndon Maury Maury Papers Blackwell Family Papers Blue Ridge Parkway Folklife Project Books About Music Before 1800 Born in Slavery: Slave Narratives from the Federal Writers Project, 1936-1938 Brady-Handy Collection Branch Rickey Papers Brazil Cordel Literature Web Archive Brazilian Elections Web Archive Bronislava Nijinska Collection Brumfield Collection Buckaroos in Paradise: Ranching Culture in Northern Nevada, 1945-1982 Burma/Myanmar Elections Web Archive Business in America Web Archive By Popular Demand: Jackie Robinson and Other Baseball Highlights, 1860s-1960s Cabinet of American Illustration California Gold: Northern California Folk Music from the Thirties Collected by Sidney Robertson Cowell California as I Saw It: First-Person Narratives of Californias Early Years, 1849-1900 Calvin Coolidge Papers Cambini Quintets Cambodian Elections Web Archive Capital and the Bay: Narratives of Washington and the Chesapeake Bay Region, 1600-1925 Captain Pearl R Nye: Life on the Ohio and Erie Canal Carnegie Survey of the Architecture of the South Carpenter Collection Carrie Chapman Catt Papers Cartoon Drawings Cartoon Drawings: Herblock Collection Cartoon Drawings: Swann Collection of Caricature and Cartoon Cartoon Prints, American Cartoon Prints, British Case Books Charles S Hamlin Papers Charles Wellington Reed Papers, 1776 to 1926 Chester Alan Arthur Papers Chicago Ethnic Arts Project Collection Childrens Book Selections China-Pakistan Economic Corridor (CPEC) 2018-2020 Web Archive Chinese Rare Book Digital Collection Chronicling America Cities and Towns Civil Rights History Project Civil War Civil War Glass Negatives and Related Prints Civil War Maps Civil War Sheet Music Collection Civil War Soldier in the Wild Cat Regiment : Selections from the Tilton C Reynolds Papers Clara Barton Papers Code of Federal Regulations College Womens Association of Japan Print Show Collection Colorado Folklife Project Collection Comics Literature and Criticism Web Archive Confederate States of America Records Coptic Orthodox Liturgical Chant and Hymnody Country Studies Crisis in Darfur 2006 Web Archive Curtis (Edward S ) Collection Daguerreotypes Dayton C Miller Collection Department of Defense Annual Reports (1948-1996) and Military Branch Budget Justification Books (1980-1996) Detroit Publishing Company Directory of US Newspapers in American Libraries Discovery and Exploration Documents from the Continental Congress and the Constitutional Convention, 1774-1789 Dolly Parton and the Roots of Country Music Donald Benham Civil War Collection Drawings (Documentary) Drawings (Master) E B Washburne Papers Early American Sheet Music Early Copyright Records Collection, 1790 to 1870 East European Government Ministries Web Archive Economics Blogs Web Archive Edwin McMasters Stanton Papers, 1818-1921 Egypt 2008 Web Archive Egyptian Elections Web Archive Elizabeth Cady Stanton Papers Elliott Carter Collection Eltaher Collection Emile Berliner and the Birth of the Recording Industry Ernest Bloch Collection Ethnic Heritage and Language Schools in America Project Eugene Meyer Papers Event Videos Executive Branch Federal Government Web Archive Farm Security Administration/Office of War Information Black-and-White Negatives Farm Security Administration/Office of War Information Color Photographs Federal Advisory Committee Web Archive Federal Courts Web Archive Federal Register Federal Theatre Project, 1935 to 1939 Felix Mendelssohn at the Library of Congress Fenton Crimean War Photographs Fiddle Tunes of the Old Frontier: The Henry Reed Collection Finding Our Place in the Cosmos: From Galileo to Sagan and Beyond Fine Prints Fine Prints: Japanese, pre-1915 Florida Folklife from the WPA Collections, 1937-1942 Food and Foodways Web Archive Foreign Law Web Archive Foreign Legal Gazettes in the Law Library of Congress France in America Franklin Pierce Papers Franz Liszt at the Library of Congress Frederick Douglass Newspapers, 1847-1874 Frederick Douglass Papers at the Library of Congress Frederick Law Olmsted Papers Freedoms Fortress: The Library of Congress, 1939-1953 Frontline Diplomacy: The Foreign Affairs Oral History Collection of the Association for Diplomatic Studies and Training Gaetano Brunetti Manuscript Scores Garden and Forest General Maps General News on the Internet Web Archive Genthe Collection Geographers on Film George Brinton McClellan Papers George S Patton Papers: Diaries, 1910-1945 George Washington Papers Gideon Welles Papers Gladstone Collection of African American Photographs Goldstein Foundation Collection--Prints and Drawings Gottscho-Schleisner Collection Grabill Collection Great Conversations in Music Groups of Images (LOTs) Grover Cleveland Papers Guide Records Harris & Ewing Collection Herndon-Weik Collection of Lincolniana Hidden Treasures at the Library of Congress Highsmith (Carol M ) Archive Hispano Music and Culture of the Northern Rio Grande: The Juan B Rael Collection Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey Historic Sheet Music Collection, 1800-1922 Home Sweet Home: Life in Nineteenth-Century Ohio Horace Greeley Papers Horace H Lurton Papers Horydczak Collection Hotchkiss Map Collection Ilka Kolsky Artwork Indian Elections Web Archive Indigenous Law Web Archive Indonesian Elections Web Archive Inside an American Factory: Films of the Westinghouse Works, 1904 International Tribunals Web Archive Inventing Entertainment: The Early Motion Pictures and Sound Recordings of the Edison Companies Iraq War 2003 Web Archive Irving Fine Collection, ca 1914-1962 James A Garfield Papers James Buchanan and Harriet Lane Johnston Papers James K Polk Papers James Madison Papers, 1723-1859 James Monroe Papers Japanese Censorship Collection Japanese-American Internment Camp Newspapers, 1942-1946 Jazz on the Screen Filmography Jedediah Hotchkiss Papers Joe Smith John Carvel Arnold Papers John G Nicolay Papers John J Pershing Papers John Tyler Papers Johnston (Frances Benjamin) Collection Joseph Holt Papers Jubal Anderson Early Papers Korab Collection LC Commissioned Composers Web Archive LGBTQ+ Politics and Political Candidates Web Archive LGBTQ+ Studies Web Archive Lamb Studios Archive Laotian Elections Web Archive Lars Schmidt Collection Last Days of a President: Films of McKinley and the Pan-American Exposition, 1901 Lawrence & Houseworth Collection Legal Blawgs Web Archive Legislative Branch Web Archive Leonard Bernstein Lessing J Rosenwald Collection Lewis H Machen Family Papers Library of Congress Concerts Library of Congress Websites Web Archive Liljenquist Family Collection of Civil War Photographs Lomax Collection Look Collection Louisiana: European Explorations and the Louisiana Purchase Lowell Folklife Project Collection Macedonian Politics Web Archive Maine Acadian Cultural Survey Collection Malaysian Elections Web Archive Manuscript Division Web Archive Manuscripts from the Monasteries of Mt Athos Manuscripts in St Catherines Monastery, Mount Sinai Manuscripts in the Libraries of the Greek and Armenian Patriarchates in Jerusalem Mapping the National Parks Maps of Liberia, 1830-1870 Margaret Bayard Smith Papers Martha Graham at the Library of Congress Martin Van Buren Papers, 1787 to 1910 Mary Ann Bickerdyke Papers Mary Church Terrell Papers Matson (G Eric and Edith) Photograph Collection Meeting of Frontiers Middle East/North Africa Government Institutions Web Archive Military Battles and Campaigns Millard Fillmore Papers Montana Folklife Survey Collection Music Treasures Consortium Music for the Nation: American Sheet Music, ca 1820-1860 Music for the Nation: American Sheet Music, ca 1870-1885 Musical Instruments at the Library of Congress Nathan W Daniels Diary and Scrapbook National American Woman Suffrage Association Collection National American Woman Suffrage Association Records National Child Labor Committee Collection National Jukebox National Photo Company Collection National Screening Room National Transportation Safety Board Orders, Petitions, and Decisions Nelson W Aldrich Papers New Mexico Folklife Project Collection New York Journal and Related Titles, 1896-1899 Newspaper Pictorials: World War I Rotogravures, 1914-1919 North Korean Serials Now What a Time: Blues, Gospel, and the Fort Valley Music Festivals, 1938-1943 Occupational Folklife Project Olmsted Associates Records Omaha Indian Music Omar Ibn Said Collection Origins of American Animation PH Filing Series Photographs Panoramic Maps Panoramic Photographs Papal Transition 2005 Web Archive Papal Transition 2013 Web Archive Patriotic Melodies Performing Arts Web Archive Persian Language Rare Materials Philip Henry Sheridan Papers Philippine Elections Web Archive Phillips/Mathée Collection Photochrom Prints Pioneering the Upper Midwest: Books from Michigan, Minnesota, and Wisconsin, ca 1820-1910 Polish Declarations of Admiration and Friendship for the United States, 1926 Political Islam Web Archive Popular Graphic Arts Posters: Artist Posters Posters: Performing Arts Posters Posters: Spanish Civil War Posters Posters: WPA Posters Posters: World War I Posters Posters: Yanker Poster Collection Pre-1700 Musical Treasures: Manuscript and Print Collection Printed Ephemera: Three Centuries of Broadsides and Other Printed Ephemera Prokudin-Gorskii Collection Public Policy Topics Web Archive Publications of the Law Library of Congress Puerto Rico at the Dawn of the Modern Age: Nineteenth- and Early-Twentieth-Century Perspectives Quilts and Quiltmaking in America, 1978-1996 Ragtime Railroad Maps, 1828-1900 Rare Book Selections Rhode Island Folklife Project Collection Robert Lansing Papers Rochambeau Map Collection Roman Totenberg Papers Roman Totenberg Papers: Totenberg-Wilk Holocaust Material Rosa Parks Papers Royal Cremation Ceremony for H M King Bhumibol Adulyadej of Thailand Web Archive Salmon P Chase Papers Samuel Barber at the Library of Congress Samuel F B Morse Papers at the Library of Congress, 1793-1919 Samuel J Gibson Diary and Correspondence Sanborn Maps Science Blogs Web Archive Selected Datasets Selected Digitized Books Selections from the Katherine Dunham Collection Selections from the National Film Registry September 11, 2001 Web Archive September 11, 2001, Documentary Project Show Music on Record Sigmund Freud Papers Sikkim Photos (Kandell Collection) Slaves and the Courts, 1740-1860 Small Press Expo Comic and Comic Art Web Archive South Pacific Islands Web Archive South-Central Georgia Folklife Project Collection Southern Mosaic: The John and Ruby Lomax 1939 Southern States Recording Trip Spanish Legal Documents (15th-19th Centuries) Sports Byline Sri Lankan Elections Web Archive Stars and Stripes: The American Soldiers Newspaper of World War I, 1918-1919 Stereograph Cards Susan B Anthony Papers Tending the Commons: Folklife and Landscape in Southern West Virginia Thaddeus Stevens Papers Thai Elections Web Archive The Alfred Whital Stern Collection of Lincolniana The Carnegie Hall Collection of Conversations with Composers The Danny Kaye and Sylvia Fine Collection The Different Faces of Nationalism in Pakistan Web Archive The Gerry Mulligan Collection The Library of Congress Celebrates the Songs of America The Life of a City: Early Films of New York, 1898-1906 The March King: John Philip Sousa The Moldenhauer Archives - The Rosaleen Moldenhauer Memorial The PALABRA Archive The Roger Reynolds Collection The Spalding Base Ball Guides, 1889-1939 The Spanish-American War in Motion Pictures Theodore Roosevelt Papers Theodore Roosevelt: His Life and Times on Film Thomas Biggs Harned Collection of Walt Whitman Papers Thomas Jefferson Papers, 1606-1827 Tibetan Oral History Archive Project Timor-Leste 2010-2011 Web Archive Timor-Leste Elections Web Archive Tissandier Collection Today in History Transit of Venus March Transportation and Communication U S Code U S Reports U S Telephone Directory Collection Ulysses S Grant Papers United States Congressional Web Archive United States Elections Web Archive United States Supreme Court Nominations Web Archive Van Vechten Collection Variety Stage Sound Recordings and Motion Pictures Veterans History Project Web Archive Vietnam-Era Prisoner-of-War/Missing-in-Action Database Vietnamese Elections Web Archive Visual Image Web Archive Voices Remembering Slavery: Freed People Tell Their Stories Voices from the Dust Bowl: the Charles L Todd and Robert Sonkin Migrant Worker Collection, 1940-1941 Walt Whitman Papers (Miscellaneous Manuscript Collection) Walt Whitman Papers in the Charles E Feinberg Collection War of 1812 Bicentennial Web Archive Warren G Harding-Carrie Fulton Phillips Correspondence Washington During the Civil War: The Diary of Horatio Nelson Taft, 1861-1865 Web Cultures Web Archive Webcomics Web Archive Webinars Wilbur and Orville Wright Papers at the Library of Congress William A Gladstone Afro-American Military Collection William H Taft Papers William Henry Harrison Papers William McKinley Papers William P Gottlieb Collection William Speiden Journals William T Sherman Papers Winter Olympic Games 2002 Web Archive Wm Oland Bourne Papers Women of Protest: Photographs from the Records of the National Womans Party Womens Suffrage in Sheet Music Womens and Gender Studies Web Archive Woodrow Wilson Papers Woody Guthrie and the Archive of American Folk Song: Correspondence, 1940-1950 Working in Paterson: Occupational Heritage in an Urban Setting World War History: Newspaper Clippings, 1914-1926 World War I Centennial Web Archive World War I Sheet Music World War II Military Situation Maps Worlds Transportation Commission Wright Brothers Negatives Yiddish American Popular Sheet Music Zachary Taylor Papers Zine Web Archive Zora Neale Hurston Plays at the Library of Congress
field name # of collection samples using this field (of 428) % of collection samples using this field data types found in samples is this field a list (multi-value)? max # of values found in sample record 10th-16th Century Liturgical Chants Aaron Copland Collection Abdul Hamid II Collection Abdul-Hamid II Collection of Books and Serials Gifted to the Library of Congress Abraham Lincoln Papers at the Library of Congress Afghanistan Web Archive Afghanistan, Iran, Pakistan and Tajikistan Government Web Archive Afghanistan, Iran, Pakistan, and Tajikistan Elections Web Archive African American Perspectives: Materials Selected from the Rare Book Collection African American Photographs Assembled for 1900 Paris Exposition African Government Web Archive African-American Band Music & Recordings, 1883-1923 After the Day of Infamy: "Man-on-the-Street" Interviews Following the Attack on Pearl Harbor Ainu and Ezochi Rare Collection Alan Lomax Collection Alan Lomax Collection of Michigan and Wisconsin Recordings Albert Schatz Collection Alexander Graham Bell Family Papers at the Library of Congress Alexander Hamilton Papers Alexander Hamilton Stephens Papers Amazing Grace America Singing: Nineteenth-Century Song Sheets America at Work, America at Leisure: Motion Pictures from 1894-1915 American Choral Music American Civil War Sesquicentennial Web Archive American Colony in Jerusalem, 1870-2006 American English Dialect Recordings: The Center for Applied Linguistics Collection American Federation of Labor Records American Leaders Speak: Recordings from World War I American Life Histories: Manuscripts from the Federal Writers Project, 1936-1940 American Music Creators Web Archive American Music Industry Web Archive American Notes: Travels in America, 1750-1920 American Revolution and Its Era: Maps and Charts of North America and the West Indies, 1750-1789 An American Ballroom Companion: Dance Instruction Manuals, ca 1490-1920 Ancestral Voices Andre Kostelanetz Collection Andrew Jackson Papers Andrew Johnson Papers Anna E Dickinson Papers Anna Maria Brodeau Thornton Papers Ansel Adamss Photographs of Japanese-American Internment at Manzanar Architecture, Design & Engineering Drawings Archive of Recorded Poetry and Literature Armenian Rarities Collection Associated Press News Dispatches, 1915-1930 Author Websites Web Archive Bain Collection Ballets Russes de Serge Diaghilev Band Music from the Civil War Era Bangladeshi Elections Web Archive Banking Industry in Southeast Asia Web Archive Baseball Cards Baseball Sheet Music Before and After the Great Earthquake and Fire: Early Films of San Francisco, 1897-1916 Benjamin Franklin Papers Benjamin Harrison Papers Bess Lomax Hawes Collection Betty Herndon Maury Maury Papers Blackwell Family Papers Blue Ridge Parkway Folklife Project Books About Music Before 1800 Born in Slavery: Slave Narratives from the Federal Writers Project, 1936-1938 Brady-Handy Collection Branch Rickey Papers Brazil Cordel Literature Web Archive Brazilian Elections Web Archive Bronislava Nijinska Collection Brumfield Collection Buckaroos in Paradise: Ranching Culture in Northern Nevada, 1945-1982 Burma/Myanmar Elections Web Archive Business in America Web Archive By Popular Demand: Jackie Robinson and Other Baseball Highlights, 1860s-1960s Cabinet of American Illustration California Gold: Northern California Folk Music from the Thirties Collected by Sidney Robertson Cowell California as I Saw It: First-Person Narratives of Californias Early Years, 1849-1900 Calvin Coolidge Papers Cambini Quintets Cambodian Elections Web Archive Capital and the Bay: Narratives of Washington and the Chesapeake Bay Region, 1600-1925 Captain Pearl R Nye: Life on the Ohio and Erie Canal Carnegie Survey of the Architecture of the South Carpenter Collection Carrie Chapman Catt Papers Cartoon Drawings Cartoon Drawings: Herblock Collection Cartoon Drawings: Swann Collection of Caricature and Cartoon Cartoon Prints, American Cartoon Prints, British Case Books Charles S Hamlin Papers Charles Wellington Reed Papers, 1776 to 1926 Chester Alan Arthur Papers Chicago Ethnic Arts Project Collection Childrens Book Selections China-Pakistan Economic Corridor (CPEC) 2018-2020 Web Archive Chinese Rare Book Digital Collection Chronicling America Cities and Towns Civil Rights History Project Civil War Civil War Glass Negatives and Related Prints Civil War Maps Civil War Sheet Music Collection Civil War Soldier in the Wild Cat Regiment : Selections from the Tilton C Reynolds Papers Clara Barton Papers Code of Federal Regulations College Womens Association of Japan Print Show Collection Colorado Folklife Project Collection Comics Literature and Criticism Web Archive Confederate States of America Records Coptic Orthodox Liturgical Chant and Hymnody Country Studies Crisis in Darfur 2006 Web Archive Curtis (Edward S ) Collection Daguerreotypes Dayton C Miller Collection Department of Defense Annual Reports (1948-1996) and Military Branch Budget Justification Books (1980-1996) Detroit Publishing Company Directory of US Newspapers in American Libraries Discovery and Exploration Documents from the Continental Congress and the Constitutional Convention, 1774-1789 Dolly Parton and the Roots of Country Music Donald Benham Civil War Collection Drawings (Documentary) Drawings (Master) E B Washburne Papers Early American Sheet Music Early Copyright Records Collection, 1790 to 1870 East European Government Ministries Web Archive Economics Blogs Web Archive Edwin McMasters Stanton Papers, 1818-1921 Egypt 2008 Web Archive Egyptian Elections Web Archive Elizabeth Cady Stanton Papers Elliott Carter Collection Eltaher Collection Emile Berliner and the Birth of the Recording Industry Ernest Bloch Collection Ethnic Heritage and Language Schools in America Project Eugene Meyer Papers Event Videos Executive Branch Federal Government Web Archive Farm Security Administration/Office of War Information Black-and-White Negatives Farm Security Administration/Office of War Information Color Photographs Federal Advisory Committee Web Archive Federal Courts Web Archive Federal Register Federal Theatre Project, 1935 to 1939 Felix Mendelssohn at the Library of Congress Fenton Crimean War Photographs Fiddle Tunes of the Old Frontier: The Henry Reed Collection Finding Our Place in the Cosmos: From Galileo to Sagan and Beyond Fine Prints Fine Prints: Japanese, pre-1915 Florida Folklife from the WPA Collections, 1937-1942 Food and Foodways Web Archive Foreign Law Web Archive Foreign Legal Gazettes in the Law Library of Congress France in America Franklin Pierce Papers Franz Liszt at the Library of Congress Frederick Douglass Newspapers, 1847-1874 Frederick Douglass Papers at the Library of Congress Frederick Law Olmsted Papers Freedoms Fortress: The Library of Congress, 1939-1953 Frontline Diplomacy: The Foreign Affairs Oral History Collection of the Association for Diplomatic Studies and Training Gaetano Brunetti Manuscript Scores Garden and Forest General Maps General News on the Internet Web Archive Genthe Collection Geographers on Film George Brinton McClellan Papers George S Patton Papers: Diaries, 1910-1945 George Washington Papers Gideon Welles Papers Gladstone Collection of African American Photographs Goldstein Foundation Collection--Prints and Drawings Gottscho-Schleisner Collection Grabill Collection Great Conversations in Music Groups of Images (LOTs) Grover Cleveland Papers Guide Records Harris & Ewing Collection Herndon-Weik Collection of Lincolniana Hidden Treasures at the Library of Congress Highsmith (Carol M ) Archive Hispano Music and Culture of the Northern Rio Grande: The Juan B Rael Collection Historic American Buildings Survey/Historic American Engineering Record/Historic American Landscapes Survey Historic Sheet Music Collection, 1800-1922 Home Sweet Home: Life in Nineteenth-Century Ohio Horace Greeley Papers Horace H Lurton Papers Horydczak Collection Hotchkiss Map Collection Ilka Kolsky Artwork Indian Elections Web Archive Indigenous Law Web Archive Indonesian Elections Web Archive Inside an American Factory: Films of the Westinghouse Works, 1904 International Tribunals Web Archive Inventing Entertainment: The Early Motion Pictures and Sound Recordings of the Edison Companies Iraq War 2003 Web Archive Irving Fine Collection, ca 1914-1962 James A Garfield Papers James Buchanan and Harriet Lane Johnston Papers James K Polk Papers James Madison Papers, 1723-1859 James Monroe Papers Japanese Censorship Collection Japanese-American Internment Camp Newspapers, 1942-1946 Jazz on the Screen Filmography Jedediah Hotchkiss Papers Joe Smith John Carvel Arnold Papers John G Nicolay Papers John J Pershing Papers John Tyler Papers Johnston (Frances Benjamin) Collection Joseph Holt Papers Jubal Anderson Early Papers Korab Collection LC Commissioned Composers Web Archive LGBTQ+ Politics and Political Candidates Web Archive LGBTQ+ Studies Web Archive Lamb Studios Archive Laotian Elections Web Archive Lars Schmidt Collection Last Days of a President: Films of McKinley and the Pan-American Exposition, 1901 Lawrence & Houseworth Collection Legal Blawgs Web Archive Legislative Branch Web Archive Leonard Bernstein Lessing J Rosenwald Collection Lewis H Machen Family Papers Library of Congress Concerts Library of Congress Websites Web Archive Liljenquist Family Collection of Civil War Photographs Lomax Collection Look Collection Louisiana: European Explorations and the Louisiana Purchase Lowell Folklife Project Collection Macedonian Politics Web Archive Maine Acadian Cultural Survey Collection Malaysian Elections Web Archive Manuscript Division Web Archive Manuscripts from the Monasteries of Mt Athos Manuscripts in St Catherines Monastery, Mount Sinai Manuscripts in the Libraries of the Greek and Armenian Patriarchates in Jerusalem Mapping the National Parks Maps of Liberia, 1830-1870 Margaret Bayard Smith Papers Martha Graham at the Library of Congress Martin Van Buren Papers, 1787 to 1910 Mary Ann Bickerdyke Papers Mary Church Terrell Papers Matson (G Eric and Edith) Photograph Collection Meeting of Frontiers Middle East/North Africa Government Institutions Web Archive Military Battles and Campaigns Millard Fillmore Papers Montana Folklife Survey Collection Music Treasures Consortium Music for the Nation: American Sheet Music, ca 1820-1860 Music for the Nation: American Sheet Music, ca 1870-1885 Musical Instruments at the Library of Congress Nathan W Daniels Diary and Scrapbook National American Woman Suffrage Association Collection National American Woman Suffrage Association Records National Child Labor Committee Collection National Jukebox National Photo Company Collection National Screening Room National Transportation Safety Board Orders, Petitions, and Decisions Nelson W Aldrich Papers New Mexico Folklife Project Collection New York Journal and Related Titles, 1896-1899 Newspaper Pictorials: World War I Rotogravures, 1914-1919 North Korean Serials Now What a Time: Blues, Gospel, and the Fort Valley Music Festivals, 1938-1943 Occupational Folklife Project Olmsted Associates Records Omaha Indian Music Omar Ibn Said Collection Origins of American Animation PH Filing Series Photographs Panoramic Maps Panoramic Photographs Papal Transition 2005 Web Archive Papal Transition 2013 Web Archive Patriotic Melodies Performing Arts Web Archive Persian Language Rare Materials Philip Henry Sheridan Papers Philippine Elections Web Archive Phillips/Mathée Collection Photochrom Prints Pioneering the Upper Midwest: Books from Michigan, Minnesota, and Wisconsin, ca 1820-1910 Polish Declarations of Admiration and Friendship for the United States, 1926 Political Islam Web Archive Popular Graphic Arts Posters: Artist Posters Posters: Performing Arts Posters Posters: Spanish Civil War Posters Posters: WPA Posters Posters: World War I Posters Posters: Yanker Poster Collection Pre-1700 Musical Treasures: Manuscript and Print Collection Printed Ephemera: Three Centuries of Broadsides and Other Printed Ephemera Prokudin-Gorskii Collection Public Policy Topics Web Archive Publications of the Law Library of Congress Puerto Rico at the Dawn of the Modern Age: Nineteenth- and Early-Twentieth-Century Perspectives Quilts and Quiltmaking in America, 1978-1996 Ragtime Railroad Maps, 1828-1900 Rare Book Selections Rhode Island Folklife Project Collection Robert Lansing Papers Rochambeau Map Collection Roman Totenberg Papers Roman Totenberg Papers: Totenberg-Wilk Holocaust Material Rosa Parks Papers Royal Cremation Ceremony for H M King Bhumibol Adulyadej of Thailand Web Archive Salmon P Chase Papers Samuel Barber at the Library of Congress Samuel F B Morse Papers at the Library of Congress, 1793-1919 Samuel J Gibson Diary and Correspondence Sanborn Maps Science Blogs Web Archive Selected Datasets Selected Digitized Books Selections from the Katherine Dunham Collection Selections from the National Film Registry September 11, 2001 Web Archive September 11, 2001, Documentary Project Show Music on Record Sigmund Freud Papers Sikkim Photos (Kandell Collection) Slaves and the Courts, 1740-1860 Small Press Expo Comic and Comic Art Web Archive South Pacific Islands Web Archive South-Central Georgia Folklife Project Collection Southern Mosaic: The John and Ruby Lomax 1939 Southern States Recording Trip Spanish Legal Documents (15th-19th Centuries) Sports Byline Sri Lankan Elections Web Archive Stars and Stripes: The American Soldiers Newspaper of World War I, 1918-1919 Stereograph Cards Susan B Anthony Papers Tending the Commons: Folklife and Landscape in Southern West Virginia Thaddeus Stevens Papers Thai Elections Web Archive The Alfred Whital Stern Collection of Lincolniana The Carnegie Hall Collection of Conversations with Composers The Danny Kaye and Sylvia Fine Collection The Different Faces of Nationalism in Pakistan Web Archive The Gerry Mulligan Collection The Library of Congress Celebrates the Songs of America The Life of a City: Early Films of New York, 1898-1906 The March King: John Philip Sousa The Moldenhauer Archives - The Rosaleen Moldenhauer Memorial The PALABRA Archive The Roger Reynolds Collection The Spalding Base Ball Guides, 1889-1939 The Spanish-American War in Motion Pictures Theodore Roosevelt Papers Theodore Roosevelt: His Life and Times on Film Thomas Biggs Harned Collection of Walt Whitman Papers Thomas Jefferson Papers, 1606-1827 Tibetan Oral History Archive Project Timor-Leste 2010-2011 Web Archive Timor-Leste Elections Web Archive Tissandier Collection Today in History Transit of Venus March Transportation and Communication U S Code U S Reports U S Telephone Directory Collection Ulysses S Grant Papers United States Congressional Web Archive United States Elections Web Archive United States Supreme Court Nominations Web Archive Van Vechten Collection Variety Stage Sound Recordings and Motion Pictures Veterans History Project Web Archive Vietnam-Era Prisoner-of-War/Missing-in-Action Database Vietnamese Elections Web Archive Visual Image Web Archive Voices Remembering Slavery: Freed People Tell Their Stories Voices from the Dust Bowl: the Charles L Todd and Robert Sonkin Migrant Worker Collection, 1940-1941 Walt Whitman Papers (Miscellaneous Manuscript Collection) Walt Whitman Papers in the Charles E Feinberg Collection War of 1812 Bicentennial Web Archive Warren G Harding-Carrie Fulton Phillips Correspondence Washington During the Civil War: The Diary of Horatio Nelson Taft, 1861-1865 Web Cultures Web Archive Webcomics Web Archive Webinars Wilbur and Orville Wright Papers at the Library of Congress William A Gladstone Afro-American Military Collection William H Taft Papers William Henry Harrison Papers William McKinley Papers William P Gottlieb Collection William Speiden Journals William T Sherman Papers Winter Olympic Games 2002 Web Archive Wm Oland Bourne Papers Women of Protest: Photographs from the Records of the National Womans Party Womens Suffrage in Sheet Music Womens and Gender Studies Web Archive Woodrow Wilson Papers Woody Guthrie and the Archive of American Folk Song: Correspondence, 1940-1950 Working in Paterson: Occupational Heritage in an Urban Setting World War History: Newspaper Clippings, 1914-1926 World War I Centennial Web Archive World War I Sheet Music World War II Military Situation Maps Worlds Transportation Commission Wright Brothers Negatives Yiddish American Popular Sheet Music Zachary Taylor Papers Zine Web Archive Zora Neale Hurston Plays at the Library of Congress

Notes

  1. Nested fields appear as in resources > 0 > url, where resources is the top-level JSON list within the result object, 0 is its first list item, and url is a dictionary key within the list items.
  2. In the case of lists nested within the hierarchy of a field (such as the example above, where resources is a list above url), samples have been pulled from the first list item but not from subsequent list items (as a result, you will not see resources > 1 > url in this table).
  3. When the target field (the lowest level field) is a list, the sample value is pulled randomly from all items in the list.
  4. Where a field is listed in the table twice, one instance is a list and the other is not. This means that in some collections, the field should be parsed as a list but not in others.
  5. Where a field is listed as appearing in 0% of collections, this means that in all samples where the field appears, it is null (empty).