Author
Historical Society of Pennsylvania
20
United States. National Archives and Records Service
18
Library of Congress
13
Library of Congress. Manuscript Division
13
Library Company of Philadelphia
8
Library of Congress. Catalog Publication Division
7
United States. National Archives and Records Administration
7
American Philosophical Society
5
Fitzpatrick, John Clement, 1876-1940
5
Library of Congress. Catalog Management and Publication Division
5
Pennsylvania Historical and Museum Commission. Division of Archives and Manuscripts
5
American Historical Society of Germans from Russia
4
Daughters of the American Revolution. Library
4
Free Library of Philadelphia
4
Kaminkow, Marion J.
4
Library of Congress. Geography and Map Division
4
Library of Congress. Map Division
4
United States. Work Projects Administration. Division of Professional and Service Projects
4
Free Library of Philadelphia. Database & Newspaper Center
3
Harvard University. Library
3
Library of Congress Union Catalog Division
3
Library of Congress. Periodicals Division
3
National Archives Trust Fund Board
3
Pike, Kermit J.
3
Princeton University. Library
3
Toronto Public Libraries
3
US Army Military History Research Collection
3
Virginia State Library. Archives Branch
3
American Baptist Historical Society. Library
2
Bassett, T. D. Seymour
2
Bühler, Curt F. 1905-1985
2
Committee for a New England Bibliography
2
Connecticut Historical Society
2
Danky, James Philip, 1947-
2
Delaware. Public Archives Commission
2
Edward E. Ayer Collection (Newberry Library)
2
Gerould, Winifred Gregory, 1885-
2
Hamilton, Sinclair
2
Hart, Lyndon H.
2
Hebrew Union College-Jewish Institute of Religion. American Jewish Periodical Center
2
Historical Records Survey (U.S.)
2
Historical Records Survey (U.S.) New Jersey
2
Hoenstine, Floyd G.
2
Ingram, John Van Ness, 1879-
2
Ker, N. R.
2
King, Cornelia S., 1953-
2
Le Gear, Clara Egli
2
Lessing J. Rosenwald Reference Collection (Library of Congress)
2
Library Co. of Philadelphia
2
Lincoln, Charles Henry, 1869-1938
2
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