1Thomas Jefferson to Robert Patterson, 21 March 1811 (Jefferson Papers)
Ramsden, Jesse; theodolite of [index entry]
2Thomas Jefferson’s Field Notes and Calculations of Altitude of the Peaks of Otter, [10–ca. 17 November 1815] (Jefferson Papers)
Ramsden, Jesse; theodolite of [index entry]
3Thomas Jefferson to Alden Partridge, 2 January 1816 (Jefferson Papers)
Ramsden, Jesse; theodolite of [index entry]
4Thomas Jefferson to Wilson Cary Nicholas, 19 April 1816 (Jefferson Papers)
Ramsden, Jesse; theodolite of [index entry]
5Thomas Jefferson to George Wyche, 10 November 1818 (Jefferson Papers)
Ramsden, Jesse; theodolite of [index entry]