Author
21st Pennsylvania Cavalry Association
1
African Institution (London, England)
1
Albemarle County Historical Society
1
Albemarle County Historical Society (Va.)
1
Albertus-Magnus-Kolleg Institutum Balticum
1
Albertus-Magnus-Kolleg. Institutum Balticum
1
American Academy of Political and Social Science
2
American Academy of Political and Social Science (Philadelphia) Editorial Board
1
American Academy of Political and Social Science Editorial Board
1
American Antiquarian Society
1
American Association for State and Local History
2
American Bibliographical Center
4
American Historical Association
2
American Historical Association. Conference Group for Central European History
1
American Historical Association. Institutional Services Program
2
American Historical Co., Inc. (New York)
1
American Historical Company, Inc. (N.Y.)
1
American Life Foundation
1
American Park Network (Firm)
1
American Philosophical Society. Library
2
American Scenic and Historic Preservation Society
1
American Swedish Historical Foundation
1
American Swedish Historical Museum (Philadelphia, Pa.)
1
Anderson, Dice Robins
1
Armstrong County Historical Museum and Genealogical Society
1
Association of American Railroads
1
Association of Historical Societies of New Hampshire
1
Association of Illinois Museums and Historical Societies
1
Atlantic County Historical Society (N.J.)
2
Augustan Society
2
Baltimore and Ohio Railroad Company
1
Barbados Museum and Historical Society
1
Batchellor, Albert Stillman, 1850-1913
1
Bates, Frank Amasa, 1858-
1
Beath, Robert B.
1
Bellevue-Stratford Hotel (Philadelphia, Pa.)
1
Bentley, Elizabeth Petty
1
Bergen County Historical Society
1
Blackside, Inc
2
Blair County Historical Society (Pa.)
1
Blumhaven Library and Gallery, Philadelphia
1
Blunt, Joseph, 1792-1860
1
Boehm, Eric H., 1918-
1
Boston Female Anti-slavery Society
1
Bostonian Society
1
Bouton, Nathaniel, 1799-1878
1
Boyer, Charles Shimer, 1869-1936
1
Branner, Shirley Prager
1
Breuberg-Bund (Darmstadt)
2
Briscoe, John
1
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