1Thomas Voigt to Thomas Jefferson, 3 September 1813 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
2Caspar Wistar to Thomas Jefferson, 27 April 1815 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
3Andrew C. Mitchell to Thomas Jefferson, 23 June 1815 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
4Charles Willson Peale to Thomas Jefferson, 7 July 1816 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
5Thomas Cooper to Thomas Jefferson, 16 September 1817 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
6Thomas Cooper to Thomas Jefferson, 19 September 1817 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
7Thomas Cooper to Thomas Jefferson, 24 October 1817 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
8José Corrêa da Serra to Thomas Jefferson, 31 October 1817 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
9Thomas Cooper to Thomas Jefferson, 20 November 1817 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]
10Thomas Cooper to Thomas Jefferson, 6 December 1817 (Jefferson Papers)
schools and colleges; University of Pennsylvania [index entry]