Author
National Society of the Colonial Dames of America in the Commonwealth of Pennsylvania
4
Pennsylvania Historical and Museum Commission
4
German Society of Pennsylvania
3
Historical Society of Western Pennsylvania
3
Pennsylvania State Library
3
Women's Agenda (Organization)
3
American Civil Liberties Union of Pennsylvania
2
Egle, William Henry, 1830-1901
2
Historical Society of Pennsylvania
2
Natural Lands Trust
2
Pennsylvania Canal Society
2
Pennsylvania Council for the Social Studies
2
Pennsylvania Historical Association
2
Pennsylvania Inspectors of Mines
2
Pennsylvania-German Society
2
Reformed Church in the United States
2
Sower, Christopher, 1721-1784
2
Western Pennsylvania Genealogical Society
2
Abington (Montgomery County, Pa. : Township) Public Library
1
Anderson, Matthew, 1847-1913
1
Armenian Sisters Academy (Radnor, Pa.)
1
Armenian Sisters of the Immaculate Conception
1
Berean Institute (Philadelphia, Pa.)
1
Catholic Church Diocese of Pittsburgh (Pa.)
1
Catholic Church. Diocese of Pittsburgh (Pa.)
1
Centre County (Pa.) Library
1
Cheyney University of Pennsylvania
1
Children's Aid Society of Pennsylvania
1
Colonial Society of Pennsylvania
1
Delaware & Lehigh National Heritage Corridor Commission
1
Delaware and Lehigh Navigation Canal National Heritage Corridor Commission
1
Dickinson School of Law
1
Diocesan Missionary Society of the Protestant Episcopal Church in Pennsylvania Meeting
1
Emergency School Aid Act Project (Pittsburgh, Pa.)
1
Farmers' Club of Pennsylvania
1
Fennell, James, 1766-1816
1
Friends of the Hugh Moore Park
1
Friends of the Railroad Museum of Pennsylvania
1
Friends' Association of Philadelphia for the Aid and Elevation of the Freedmen
1
Geological Society of Pennsylvania
1
Goschenhoppen Historians, Inc
1
Harrt, John Seely 1810-1877
1
Hazard, Samuel, 1784-1870
1
Hoban, Charles Francis
1
Hugh Moore Historical Park & Museums Canal Museum
1
Huguenot Society of Pennsylvania
1
Klein, Philip S.
1
League of Women Voters of Pennsylvania
1
Lewis, Shippen, 1887-
1
Linn, John Blair, 1831-1899
1
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