Author
Foundation for Architecture (Philadelphia, Pa.)
4
Gallery, John Andrew
2
Group for Environmental Education (Philadelphia, Pa.)
2
Historical Society of Pennsylvania
2
Manton, John C., 1948-
2
National Society of the Colonial Dames of America in the Commonwealth of Pennsylvania
2
Ritter & Shay Architects
2
Adams, Bertha
1
Burke, Bobbye, 1929-
1
Crane, Tom
1
Holmes, George J.
1
Hornblum, Allen M.
1
Library Company of Philadelphia
1
Minardi, Joseph
1
Moss, Roger W., 1940-
1
Preservation Alliance for Greater Philadelphia,
1
Thomas, George E.
1
Traub, David S.
1
Traub, David S.,
1
Vaux, Trina
1