Author
Historical Society of Pennsylvania
10
Library Company of Philadelphia
5
Athenaeum of Philadelphia
2
German Society of Pennsylvania
2
Hertzog, Lena
2
Leavitt, Strebeigh & Co
2
Moss, Roger W., 1940-
2
Wolf, Edwin, 1911-1991
2
Abbot, Ezra, 1819-1884
1
Afro-American Historical and Cultural Museum (Philadelphia, Pa.)
1
Apprentices' Library Company of Philadelphia
1
Balch Institute for Ethnic Studies
1
Berry, John N. III
1
Bibliographical Planning Committee of Philadelphia
1
Chemical Heritage Foundation
1
Clark, Nannette
1
Crozer Theological Seminary (Upland, Chester, Pa.) Bucknell Library
1
Dowdall, Emily
1
Eichel, Lawrence E.
1
Free Library
1
Free Library of Philadelphia. Rare Book Department
1
Friends of the PCI Library (Philadelphia, Pa.)
1
Holt, Mary E.
1
Hundley, Kimberly
1
Hutton, Addison 1843-1916
1
Joseph and William Kite (Firm),
1
Krauth, Charles P. 1823-1883
1
Pennsylvania Hospital (Philadelphia, Pa.). Medical Library
1
Philadelphia Area Consortium of Special Collections Libraries
1
Philadelphia Research Initiative
1
Philadelpiha City Archives
1
Reed Business Information (Firm)
1
Robinson, F. W. 1851-1891
1
Rosenbach Museum & Library
1
SIRSI Corporation
1
Shubik-Richards, Claire
1
Trumbauer, Horace, 1868-1938
1
Whiteman, William A.
1
Whiteman, William A., 1834-1867
1
Williams, Brown & Earle (Philadelphia, Pa.)
1
Wolf, Edwin, 1911-
1