Author
United States. National Park Service
7
Rau, William Herman, 1855-1920
3
Pancoast, Charles R., 1858-
2
Williams, Brown & Earle (Philadelphia, Pa.)
2
Bacon, John M.
1
Carl Schurz Memorial Foundation
1
Cawood, Hobart G.
1
Charles Beseler Co
1
Detroit Publishing Co
1
Frey, Carroll, 1894-
1
Harbeson, Hough, Livingston & Larson, Architects
1
Holmes & Deats (Philadelphia, Pa.)
1
IU International Corporation
1
Independence National Historical Park (Agency : U.S.)
1
Jenkins, Charles F.
1
Lingelbach, William E. 1871-1962
1
Milligan, Charles T., b. 1839
1
O'Gorman, James F.
1
Penn Mutual Life Insurance Company
1
Pennypacker, Samuel W. 1843-1916
1
Perkins, Helen C. b. 1849
1
Peterson, Charles E. 1906-2004
1
Philadelphia City Planning Commission
1
Philadelphia Record
1
R. Newell & Son (Philadelphia, Pa.)
1
Roach, Hannah Benner
1
Scott and Van Altena Company
1
U.S Philadelphia National Shrines Park Commission
1
United States. National Park Service. Denver Service Center
1
Wheelwright, Stevenson & Langran
1
Woodward & Lothrop
1