1Theodorus Bailey to Thomas Jefferson, 18 March 1811 (Jefferson Papers)
Erie Canal [index entry] maps; of projected Erie Canal [index entry]
2Theodorus Bailey to Thomas Jefferson, 2 April 1811 (Jefferson Papers)
Erie Canal [index entry] maps; of projected Erie Canal [index entry]
3Theodorus Bailey to Thomas Jefferson, 2 May 1811 (Jefferson Papers)
Erie Canal [index entry] maps; of projected Erie Canal [index entry]