1Thomas Jefferson to George Jefferson, 1 May 1809 (Jefferson Papers)
dynamometers; lost in transit [index entry]
2Thomas Jefferson to George Jefferson, 18 May 1809 (Jefferson Papers)
dynamometers; lost in transit [index entry]
3Thomas Jefferson to Joel Barlow, 31 December 1809 (Jefferson Papers)
dynamometers; lost in transit [index entry]
4Thomas Jefferson to Robert Fulton, 16 April 1810 (Jefferson Papers)
dynamometers; lost in transit [index entry]
5Robert Fulton to Thomas Jefferson, 2 May 1810 (Jefferson Papers)
dynamometers; lost in transit [index entry]