Author
Historical Society of Pennsylvania
31
Maryland State Archives
24
Library of Congress. Manuscript Division
17
United States. National Archives and Records Administration
11
United States. National Archives and Records Service
10
Library Company of Philadelphia
8
Fitzpatrick, John Clement, 1876-1940
7
Library of Congress
7
United States. Work Projects Administration. Division of Professional and Service Projects
7
American Philosophical Society
6
Balch Institute for Ethnic Studies
6
New Jersey Historical Society
6
Pennsylvania Historical and Museum Commission
6
Princeton University. Library
6
University of Minnesota. Immigration History Research Center
6
New Jersey Historical Records Survey Project
5
Pennsylvania Academy of the Fine Arts
5
Pennsylvania Historical and Museum Commission. Division of Archives and Manuscripts
5
United States. National Historical Publications Commission
5
American Historical Society of Germans from Russia
4
Beers, Henry Putney, 1907-
4
Committee for a New England Bibliography
4
Genesee Valley Council on the Arts
4
Great Britain. Public Record Office
4
Hamilton, Sinclair
4
Historical Records Survey (U.S.) New Jersey
4
Maryland Historical Society
4
Oregon Historical Society
4
Philadelphia Museum of Art
4
Scotch-Irish Foundation
4
State Historical Society of Wisconsin
4
Virginia Historical Society
4
Baldwin-Lima-Hamilton Corp
3
Evelina López Antonetty Puerto Rican Research Collection (New York, N.Y.)
3
Ford, Worthington Chauncey, 1858-1941
3
Historic American Buildings Survey
3
Historical Records Survey of Pennsylvania
3
Ker, N. R.
3
Lederer, Bertha VanBuren
3
Matchette, Teresa F.
3
National Archives (U.S.)
3
New Jersey State Museum
3
New York (State). Secretary's Office
3
Newberry Library
3
Parker, David W.
3
Public Archives of Canada
3
Smithsonian Institution
3
Temple University. Libraries. Rare Book and Manuscript Department
3
Toronto Public Libraries
3
Ward, Barbara McLean
3
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