Author
Historical Society of Pennsylvania
6
American Philosophical Society
2
Ericson, Jack T.
2
Indian Rights Association
2
Catlett, J. Stephen
1
Fleishman, Margot
1
Library Company of Philadelphia
1
Meade, George Gordon, 1815-1872
1
Pennsylvania Higher Education Assistance Agency
1
Rolph, Daniel N., 1953-
1
Scholarly Resources Inc
1
Tucher, Andrea
1
Welsh, Herbert, 1851-1941
1