1Caspar Wistar to Thomas Jefferson, 29 June 1813 (Jefferson Papers)
Jefferson, Thomas; Correspondence; letters of introduction to [index entry]
2Caspar Wistar to Thomas Jefferson, [received 4 February 1815] (Jefferson Papers)
Jefferson, Thomas; Correspondence; letters of introduction to [index entry]
3Caspar Wistar to Thomas Jefferson, 28 May 1816 (Jefferson Papers)
Jefferson, Thomas; Correspondence; letters of introduction to [index entry]
4Caspar Wistar to Thomas Jefferson, 24 February 1817 (Jefferson Papers)
Jefferson, Thomas; Correspondence; letters of introduction to [index entry]