Other
Cooper, Wendy A.
2
Historical Society of Pennsylvania
2
National Gallery of Art (U.S.)
2
Cross, Michael S.
1
Flanigan, J. Michael
1
George de Benneville Keim Memorial Collection
1
Heckscher, Morrison H.
1
Library Company of Philadelphia
1
Metropolitan Museum of Art (New York, N.Y.). American Wing
1
Miller, Lillian B.
1
National Portrait Gallery (Smithsonian Institution)
1
Pennsylvania State University. Museum of Art
1
Ploog, Randy
1
Royal Ontario Museum
1
Szylinger, Irene
1
Trust for Museum Exhibitions
1
Webster, Donald Blake
1
Weidman, Gregory R., 1950-
1
Weintraub, Stanley, 1929-
1