1Thomas Jefferson to Wilson Cary Nicholas, 2 April 1816 (Jefferson Papers)
Briggs, Isaac; proposed as surveyor of Va. [index entry]
2Thomas Jefferson to Isaac Briggs, 17 April 1816 (Jefferson Papers)
Briggs, Isaac; proposed as surveyor of Va. [index entry]
3Thomas Jefferson to Isaac Briggs, 18 May 1817 (Jefferson Papers)
Briggs, Isaac; proposed as surveyor of Va. [index entry]