21To James Madison from Valentine Gill, 4 April 1817 (Madison Papers)
...as a draftsman on the construction of the Erie Canal. He published at least two maps, one...
22Valentine Gill to Thomas Jefferson, 12 April 1817 (Jefferson Papers)
...as an engineer surveying the route for the Champlain and Erie canals. Gill settled by 1819 in
23Thomas Jefferson to DeWitt Clinton, 14 April 1817 (Jefferson Papers)
Clinton, DeWitt; and Erie Canal [index entry] Erie Canal [index entry]
24Elkanah Watson to Thomas Jefferson, 24 April 1817 (Jefferson Papers)
...supporter of the construction of the Erie Canal and the movement to establish local...
25DeWitt Clinton to Thomas Jefferson, 25 April 1817 (Jefferson Papers)
Clinton, DeWitt; and Erie Canal [index entry] Erie Canal [index entry]
26Isaac Briggs to Thomas Jefferson, 9 May 1817 (Jefferson Papers)
Briggs, Isaac; and Erie Canal [index entry] Clinton, DeWitt; and Erie Canal [index entry]
27Isaac Briggs to Thomas Jefferson, 15 May 1817 (Jefferson Papers)
of a section of the Erie Canal, for the Erie Canal while
28Thomas Eddy to Thomas Jefferson, 16 May 1817 (Jefferson Papers)
Erie Canal [index entry]
29Thomas Jefferson to Isaac Briggs, 18 May 1817 (Jefferson Papers)
Briggs, Isaac; and Erie Canal [index entry] Erie Canal [index entry]
30Isaac Briggs to Thomas Jefferson, 21 May 1817 (Jefferson Papers)
Briggs, Isaac; and Erie Canal [index entry] Clinton, DeWitt; and Erie Canal [index entry]