1David Gelston to Thomas Jefferson, 17 October 1811 (Jefferson Papers)
New York (state); steamboats in [index entry]
2Enclosure: David Gelston’s List of Steamboats, [ca. 17 October 1811] (Jefferson Papers)
New York (state); steamboats in [index entry]
3Thomas Jefferson to David Gelston, 14 November 1811 (Jefferson Papers)
New York (state); steamboats in [index entry]