1William Dunn to Thomas Jefferson, 25 August 1809 (Jefferson Papers)
Watts, Isaac [index entry]
2Thomas Cooper’s Notes on University Curricula, [ca. 15–22 September 1814] (Jefferson Papers)
Watts, Isaac [index entry]
3Thomas Cooper to Thomas Jefferson, 15 September 1814 (Jefferson Papers)
Watts, Isaac [index entry]
4Francis Eppes to Thomas Jefferson, 31 October 1820 (Jefferson Papers)
Watts, Isaac; Logick [index entry]
5Thomas Jefferson to Francis Eppes, 13 December 1820 (Jefferson Papers)
Watts, Isaac; Logick [index entry]