1Isaac Briggs to Thomas Jefferson, 16 February 1816 (Jefferson Papers)
Briggs, Isaac; family of [index entry]
2Isaac Briggs to Thomas Jefferson, 15 May 1817 (Jefferson Papers)
Briggs, Isaac; family of [index entry]
3Isaac Briggs to Thomas Jefferson, 21 May 1817 (Jefferson Papers)
Briggs, Isaac; family of [index entry]
4Isaac Briggs’s Account of a Visit to Monticello, 2–4 November 1820 (Jefferson Papers)
Briggs, Isaac; family of [index entry]