1Francis Adrian Van der Kemp to Thomas Jefferson, 14 July 1816 (Jefferson Papers)
Willoughby, Westel; as U.S. representative from N.Y. [index entry]
2Francis Adrian Van der Kemp to Thomas Jefferson, 1 November 1816 (Jefferson Papers)
Willoughby, Westel; as U.S. representative from N.Y. [index entry]
3Thomas Jefferson to Francis Adrian Van der Kemp, 24 November 1816 (Jefferson Papers)
Willoughby, Westel; as U.S. representative from N.Y. [index entry]
4Francis Adrian Van der Kemp to Thomas Jefferson, 2 February 1817 (Jefferson Papers)
Willoughby, Westel; as U.S. representative from N.Y. [index entry]