11John Adams to Thomas Jefferson, 21 May 1819 (Jefferson Papers)
Van der Kemp, Francis Adrian; friendship with J. Adams [index entry]
12Francis Adrian Van der Kemp to Thomas Jefferson, 25 June 1820 (Jefferson Papers)
Van der Kemp, Francis Adrian; friendship with J. Adams [index entry]
13Francis Adrian Van der Kemp to Thomas Jefferson, 28 August 1820 (Jefferson Papers)
Van der Kemp, Francis Adrian; friendship with J. Adams [index entry]
14Francis Adrian Van der Kemp to Thomas Jefferson, 12 March 1821 (Jefferson Papers)
Van der Kemp, Francis Adrian; friendship with J. Adams [index entry]
15Francis Adrian Van der Kemp to Thomas Jefferson, 10 December 1821 (Jefferson Papers)
Van der Kemp, Francis Adrian; friendship with J. Adams [index entry]