Author
Jackson, Joseph
2
Mastbaum Bros. & Fleisher, Philadelphia
2
Bloomsbury Auctions (Firm)
1
Bussy, R. Kenneth
1
Christ Church (Philadelphia, Pa.) Archives of Christ Church, Philadelphia
1
Coates, Jennifer
1
Cutright, Paul Russell, 1897-
1
Druckman, Melissa, 1954-
1
Geographical Society of Philadelphia
1
Historical Society of Pennsylvania
1
La Salle College. Art Museum
1
Lewis and Clark Trail Heritage Foundation
1
Library Company of Philadelphia
1
Library of Congress. Map Division
1
Mackenzie, Sandra
1
Miller, Clarence William, 1914-
1
Nauen, Lindsay B.
1
Parker, Peter J., 1936-
1
Pennsylvania Historical Commission
1
Pennsylvania Historical Survey
1
Philadelphia Book Clinic
1
Philadelphia Jewish Archives Center
1
Phillips, Philip Lee, 1857-1924
1
Preservation Alliance for Greater Philadelphia,
1
Reed, Mary Beth
1
Rogers, Marianne
1
Schneider, Dorothy
1
Snider, Jay T.
1
Thomson, Jane
1
United States. National Historical Publications and Records Commission
1
University of Pennsylvania. Library
1
Wolf, Edwin, 1911-
1
Wyck Association
1
Wyck Charitable Trust
1