Author
United States. Office of Indian Affairs
13
American Philosophical Society
10
American Bibliographical Center
9
Archaeological Institute of America
9
Augustan Society
9
National Slovak Society of the United States of America
9
New England Historic Genealogical Society
9
American Anti-Slavery Society
8
American Association of University Women Philadelphia Branch
8
American Historical Association
8
Nebraska Jewish Historical Society
8
New Century Club (Philadelphia, Pa.)
8
Philadelphia Convention & Visitors Bureau
8
Polish National Alliance of the United States of North America
8
American Jewish Historical Society
7
Archives of American Art
7
Friends of Independence National Historical Park
7
Maine Historical Society
7
National Society of the Colonial Dames of America
7
Pennsylvania Historical and Museum Commission
7
Pennsylvania Railroad
7
American Antiquarian Society
6
Cincinnati Historical Society
6
Family Genealogical Exchange
6
Federation of Jewish Charities of Philadelphia
6
Harry Houdini Collection (Library of Congress)
6
Jacobus, Donald Lines, 1887-1970
6
Library of Congress
6
Lusaka Mission Service
6
Pennsylvania State Library
6
Presbyterian Historical Society
6
Ukrainian National Association
6
Vermont Historical Society
6
Academy of Natural Sciences of Philadelphia
5
American Association for State and Local History
5
American Jewish Congress
5
Armenian Assembly of America
5
Armenian General Benevolent Union
5
Balch Institute for Ethnic Studies
5
Bucks County Historical Society
5
Center for Migration Studies (U.S.)
5
Daughters of the American Revolution
5
Egle, William Henry, 1830-1901
5
First Baptist Church (Philadelphia, Pa.)
5
Foulke, Joseph
5
Hague, Thomas
5
Historical Society of Pennsylvania
5
Historical Society of Western Pennsylvania
5
Indiana Historical Society
5
National Council on Public History (U.S.)
5
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