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]
3Joseph Bringhurst to Thomas Jefferson, 2 May 1816 (Jefferson Papers)
Briggs, Isaac; proposed as surveyor of Va. [index entry]
4Isaac Briggs to Thomas Jefferson, 7 May 1816, with Postscript by Mary B. Briggs (Jefferson Papers)
Briggs, Isaac; proposed as surveyor of Va. [index entry]
5Thomas Jefferson to Isaac Briggs, 18 May 1817 (Jefferson Papers)
Briggs, Isaac; proposed as surveyor of Va. [index entry]