1To Thomas Jefferson from Isaac Briggs, 24 January 1801 (Jefferson Papers)
...as chief engineer on the section of the Erie Canal from Rome to Utica, New York, which...
2To James Madison from Isaac Briggs, 16 May 1812 (Madison Papers)
...projects, including the construction of the Erie Canal (Ella Kent Barnard, “Isaac Briggs, A...
3Isaac Briggs to Thomas Jefferson, 16 February 1816 (Jefferson Papers)
...worked as an engineer on a section of the Erie Canal, and when that was completed in 1819 he...
4Isaac Briggs to Thomas Jefferson, 9 May 1817 (Jefferson Papers)
Briggs, Isaac; and Erie Canal [index entry] Clinton, DeWitt; and Erie Canal [index entry]
5Isaac Briggs to Thomas Jefferson, 15 May 1817 (Jefferson Papers)
of a section of the Erie Canal, for the Erie Canal while
6Isaac Briggs to Thomas Jefferson, 21 May 1817 (Jefferson Papers)
Briggs, Isaac; and Erie Canal [index entry] Clinton, DeWitt; and Erie Canal [index entry]
7Isaac Briggs to Thomas Jefferson, 17 November 1817 (Jefferson Papers)
Briggs, Isaac; and Erie Canal [index entry] Erie Canal [index entry]
8Isaac Briggs’s Account of a Meeting with Madison [1 November 1820] (Madison Papers)
...worked as an engineer on several canal projects, including the Erie Canal (