Author
Jefferson Medical College
8
Adams, Herbert B. 1850-1901
4
Nichols, Roy F. 1896-1973
4
Hart, Albert Bushnell, 1854-1943
3
Howard, Gary
3
National Center for History in the Schools (U.S.)
3
Pennsylvania Historical and Museum Commission
3
Abrahams, Harold J., 1901-
2
Alliance College
2
American Association for State and Local History
2
Bache, Franklin, 1792-1864
2
Brimelow, Judith M.
2
Bryan, James, 1810-1881
2
Channing, Edward, 1856-1931
2
Copp, Roberta VH
2
Donaldson, Thomas, 1815-1877
2
Dunglison, Robley, 1798-1869
2
FitzGerald, Frances, 1940-
2
Frédéricq, Paul, 1850-1920
2
Friedrich, Linda D.
2
Gebert, B.
2
Gross, Samuel D. 1805-1884
2
Harcerska szkoła przedmiotów ojczystych
2
Leidy, Joseph, 1823-1891
2
Maryland Historical Society
2
Middle States Association of History and Social Science Teachers
2
Nash, Gary B.
2
National History Day (Organization)
2
Philadelphia College of Medicine
2
Project REACH (Arlington, Wash.)
2
Schweitzer, Christoph E.
2
South Carolina. Department of Archives and History. Public Programs Division
2
University of Pennsylvania. Department of Medicine
2
Zimmerman, Jonathan, 1961-
2
Adams, Charles Kendall, 1835-1902
1
Almojuela, Colleen
1
Altschul, Charles, 1857-1927
1
American Council of Learned Societies
1
American Historical Association
1
American Hungarian Educators' Association
1
American Jewish Archives
1
Anthoensen Press
1
Archbold, William Arthur Jobson
1
Aubitz, Shawn
1
B'nai B'rith. Anti-defamation League
1
Bain, Aja,
1
Baird, John
1
Balch Institute for Ethnic Studies
1
Barton, William P. C. 1786-1856
1
Basinski, Michael
1
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