Guichard Parris papers consist of correspondence, diaries, manuscripts, notes and printed material from his personal files, his files on the history of the National Urban League, manuscript material for Blacks in the City; A History of the National Urban League, Boston, Little, Brown, 1971 (co-authored with Lester Brooks) and administrative files of the National Urban League. Parris' personal files include folders on his organizational affiliations outside the National Urban League; of particular interest are copies of his correspondence with Mary McLeod Bethune while he was affiliated with the National Youth Administration. Bethune is among the cataloged correspondence, as are Theodore Roosevelt and Ruth Standish Baldwin.

There are substantial gaps for the years 1921-1939.

This collection is made up of Margaret Young's professional papers, writings, personal and professional correspondence, biographical material, and photographs. A significant portion of the material, including a number of photographs, documents the career and commemoration of Whitney M. Young, Jr. There are several oversized items including photo albums, awards, and scrapbooks that relate to Margaret Young's professional activities and travels. The files span Margaret Young's lifetime, but most of the material documents her activities after Whitney Young's death in 1971.

Correspondence, manuscripts, documents, financial records, photographs, memorabilia, and printed materials. The Foundation's correspondence files consist of letters from different organizations and foundations, including the Martin Luther King, Jr. Center for Social Change, The NAACP, the United Negro College Fund, the Studio Museum in Harlem, and the YWCA. Also included in this collection are community dialogues on race relations (1974-1975); proposed dialogues (1979) on such subjects as the Boy Scouts of America, Columbia University, and the National Council of Christians and Jews; and files on the Whitney M. Young Fellows Retreat Conferences (1980-1984). The collection contains many files on Ed Wilson's bust of Young (1991), including contracts and agreements, records of payments to Wilson, documents concerning the bust's placement in various locations, correspondence with Wilson (1983-1991), and miscellaneous photographs and pictures. The contributions files contain annual listings of contributions and records of contributions from the National Urban League, assorted organizations, corporations, individuals, foundations, and Philip Morris.

Correspondence, speeches, reports, testimony, press releases, and articles of Young. The files document Young's leadership in many social welfare and civil rights organizations, as well as his activities as a columnist and speaker. Cataloged correspondents include Robert F. Kennedy, Lyndon B. Johnson, Hubert H. Humphrey, Martin Luther King, Jr., Coretta Scott King, Roy Wilkins, and John W. Gardner.