1To Thomas Jefferson from Richard Claiborne, 22 August 1802 (Jefferson Papers)
...go. I am endeavoring to get a steam engine brought forward, where the great advantage lies...
2To Thomas Jefferson from Richard Claiborne, 12 December 1802 (Jefferson Papers)
...force to render the invention publicly useful. The steam engine is my aim—and tho’ it has...
3Richard Claiborne to Thomas Jefferson, 4 July 1817 (Jefferson Papers)
...or uniform force, by means of the upright steam Engine, with semicircles applied to horizontal...