Author
AARW (Asian American Resource Workshop)
1
ADC Research Institute
1
AIM, Inc. (Glendale, Calif.)
1
Abbott, Lyman, 1835-1922
1
Action Irish
1
Aczel, Aurel
1
Aczél, Aurél
1
African American Genealogy Group (Philadelphia, Pa.)
1
African American Museum in Philadelphia
1
African American Museums Association
1
African People's Socialist Party
2
Afro-American Historical Association of the Niagara Frontier
2
Afro-American Historical and Cultural Museum (Philadelphia, Pa.)
2
Afro-American Historical and Genealogical Society (Washington, D.C.)
3
Afro-American Research Institute (New York, N.Y.)
2
Albanian-American National Organization
1
Alexe, Gheorghe
2
Alliance College
2
Alliance Francaise de Washington, DC
1
Amalgamated Clothing Workers of America
2
America-Italy Society
1
American Almanac Collection (Library of Congress)
2
American Anti-Slavery Society
1
American Anti-Slavery Society. Executive Committee
1
American Antiquarian Society
5
American Art-Union
1
American Association for State and Local History
2
American Association for the Advancement of Slavic Studies
1
American Association of Retired Persons
1
American Association of Teachers of Italian
1
American Association of University Women Philadelphia Branch
8
American Autograph Shop
1
American Autograph Shop (Merion Station, Pa.)
1
American Baptist Churches (U.S.A.) Board of Education Ministries
1
American Baptist Churches, U.S.A Board of Education Ministries
1
American Baptist Home Mission Society
2
American Battlefield Protection Program (U.S.)
1
American Chamber of Commerce
1
American Civil Liberties Union of Pennsylvania
2
American Colonization Society
2
American Committee for Irish Studies
1
American Committee for Ulster Justice
1
American Common School Society
1
American Conference for Irish Studies
1
American Council for American Unity
1
American Council for Nationalities Service
2
American Council for Polish Culture
3
American Council for the Arts
1
American Council of Learned Societies
1
American Council of Polish Cultural Clubs
3
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