Other
Jackson, Joseph
2
Mastbaum Bros. & Fleisher, Philadelphia
2
Bloomsbury Auctions (Firm)
1
Bussy, R. Kenneth
1
Cutright, Paul Russell, 1897-
1
Geographical Society of Philadelphia
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
Miller, Clarence William, 1914-
1
Philadelphia Book Clinic
1
Phillips, Philip Lee, 1857-1924
1
Preservation Alliance for Greater Philadelphia,
1
Rogers, Marianne
1
Snider, Jay T.
1
University of Pennsylvania. Library
1