Author
Library of Congress
31
United States Work Projects Administration Division of Professional and Service Projects
29
United States National Archives and Records Service
27
United States Work Projects Administration Division of Community Service Programs
27
Historical Records Survey (U.S.) Ohio
26
Historical Society of Pennsylvania
25
Historical Records Survey (Ohio)
22
Library of Congress Manuscript Division
21
McMurtrie, Douglas C. 1888-1944
17
Library of Congress Division of Bibliography
16
New Hampshire Historical Records Survey
16
New Jersey Historical Records Survey Project
16
United States Works Progress Administration Division of Women's and Professional Projects
15
Historical Records Survey (U.S.) New Hampshire
14
Historical Records Survey (U.S.) Pennsylvania
14
University of Minnesota Immigration History Research Center
13
Historical Records Survey (U.S.) New Jersey
12
US Army Military History Research Collection
11
Free Library of Philadelphia
10
Griffin, Appleton P. C. 1852-1926
10
Historical Records Survey of Pennsylvania
10
United States Work Projects Administration Service Division
10
University of New Hampshire
10
Cordasco, Francesco, 1920-
9
National Archives (U.S.)
9
Rosenbach, A. S. W. 1876-1952
9
Ethnic Heritage Studies Program (U.S.)
8
Ford, Paul Leicester, 1865-1902
8
Gaer, Joseph, 1897-
8
Historical Records Survey (U.S.) New York (State)
8
Library Company of Philadelphia
8
Library of Congress Map Division
8
Historical Records Survey (U.S.) New York (N.Y.)
7
Historical Records Survey (U.S.) North Carolina
7
Historical Records Survey of North Carolina
7
John Carter Brown Library
7
Library of Congress Catalog Publication Division
7
Library of Congress Music Division
7
New Jersey State Planning Board
7
Phillips, Philip Lee, 1857-1924
7
Sonneck, Oscar George Theodore, 1873-1928
7
United States National Archives and Records Administration
7
American Philosophical Society
6
Bibliographical Society of America
6
Dwyer, Joseph D.
6
Fitzpatrick, John Clement, 1876-1940
6
Grolier Club
6
Hasse, Adelaide Rosalia, 1868-1953
6
Historical Records Survey (U.S.) West Virginia
6
Historical Records Survey Project of Pennsylvania
6
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