Author
Academy of Natural Sciences of Philadelphia
1
American Philosophical Society
1
Bennet, Katharine W.
1
Cheyney, Edward Potts, 1861-1947
1
Eshelman, Nancy
1
Historical Society of Pennsylvania
1
Keen, William W. 1837-1932
1
Lawrence Henry Gipson Institute
1
Lea, Henry Charles, 1825-1909
1
Library Company of Philadelphia
1
Lycoming Historical Society (Lycoming County, Pa.)
1
Rothrock, Boyd P.
1
Shaw, Diane Windham
1
Temple University
1
Thomson, O. R. Howard 1873-
1
University of Pennsylvania
1