Author
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African Institution (London, England)
2
African slave trade African Squadron
1
Agnew, Daniel, 1809-1902
1
Agricultural Society of Bucks County (Pa.)
1
Aikman, William, 1824-1909
1
Aitken, Robert, 1735-1802,
1
Aĭzman, Garri
1
Albany, N.Y North Dutch Reformed Church
1
Albertype Co
1
Allegheny Conference on Community Development (Pa.)
1
Allen, Benjamin, 1789-1829
1
Allen, James S.
1
Allen, James Stewart, 1906-
2
Allen, Joshua Gibbons, 1832-1903
1
Allen, Richard, 1760-1831
1
Allen, Robert L., 1942-
1
Allen, Thomas, 1608-1673
5
Allen, William, 1710 (ca. )-1780
1
Allyn, John, 1767-1833
1
Almon, John, 1737-1805
1
Alms-House (Philadelphia, Pa.)
1
Alotta, Robert I.
1
Amalgamated Clothing Workers of America
1
American Academy of Arts and Sciences
1
American Anti-Slavery Society
1
American Antiquarian Society
4
American Association for the Advancement of Science
1
American Association of Teachers of Spanish and Portuguese. Southeastern Penna. Chapter. Bicentennial Committee
1
American Car & Foundry Motors Company (Philadelphia)
1
American Colonization Society
2
American Committee of Justice,
1
American Convention for Promoting the Abolition of Slavery and Improving the Condition of the African Race
1
American Friends Service Committee. Refugee Section
2
American Friends of Czechoslovakia
1
American Historical Society
1
American Humane Association
1
American Imprint Collection (Library of Congress)
104
American Industries
1
American Jewish Archives
1
American Jewish Committee. Research Institute on Peace and Post-War Problems
1
American Missionary Association
1
American Party
1
American Peace Society
1
American Philosophical Society
3
American Philosophical Society. Library
1
American Slav Congress
1
American Social Science Association
1
American Society for Colonizing the Free People of Colour of the United States
1
American Society of Genealogists
1
American Sunday-School Union
1
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