1John Waldo to Thomas Jefferson, 27 March 1813 (Jefferson Papers)
Rudiments of English Grammar (J. Waldo) [index entry]
2Thomas Jefferson to John Waldo, 16 August 1813 (Jefferson Papers)
Rudiments of English Grammar (J. Waldo) [index entry]
3John Waldo to Thomas Jefferson, 25 April 1814 (Jefferson Papers)
An Abridgment of Waldo’s Rudiments of English Grammar (J. Waldo) [index entry]
4Thomas Jefferson to John Waldo, 1 July 1814 (Jefferson Papers)
Rudiments of English Grammar (J. Waldo) [index entry]