Author
Philadelphia Museum of Art
35
Penn, William, 1644-1718
15
Keith, George, 1639?-1716
10
Pennsylvania Academy of the Fine Arts
8
American Philosophical Society
6
Dunn, Richard S.
6
Dunn, Mary Maples
5
Library Company of Philadelphia
5
University of Pennsylvania. Museum of Archaeology and Anthropology
5
Budd, Thomas, 1648-1699
4
Corso, Paola
4
Historical Society of Pennsylvania
4
Hornblum, Allen M.
4
Rados Collection (Wellesley College Library)
4
Trotter, Joe William, 1945-
4
Western Pennsylvania Historical Survey
4
Barnes Foundation
3
Carnegie Museum of Art
3
Dieterich-Ward, Allen,
3
Franklin, Benjamin, 1706-1790
3
Historical Society of Western Pennsylvania
3
Hodos, Jerome I. 1967-
3
Horle, Craig W.
3
Ivey, Chris
3
Kalter, Susan, 1969-
3
Knowles, Scott Gabriel
3
Korson, George Gershon, 1899-1967
3
Minardi, Lisa, 1983-
3
Myers, Albert Cook, 1874-1960
3
Pennsylvania. Department of Internal Affairs
3
Pennsylvania. Topographic and Geological Survey Commission
3
University of Pennsylvania. Department of Law
3
University of Pennsylvania. Law School
3
University of Pennsylvania. University Museum
3
Western Pennsylvania Conservancy
3
Wolfgang, Marvin E. 1924-1998
3
Wong, Edlie L.,
3
Adams, Percy G.,
2
Allentown Art Museum
2
Aniśko, Anna
2
Arner, Robert D.
2
Bacon, Margaret Hope
2
Bathanti, Joseph
2
Bauer, Henry, 1861-1934
2
Berkman, Alexander, 1870-1936
2
Bezanson, Anne
2
Bibliographical Society of America
2
Black, John H., 1834-1922
2
Block, Timothy A.
2
Bonsall, Spencer, 1816-1888
2
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