Sir Benjamin Thompson, Count Rumford (26 March 1753 – 21 August 1814) was an Anglo-American physicist and inventor whose challenges to established physical theory were part of the 19th century revolution in thermodynamics.
Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 7) (New York, NY: Harper and Brothers, 1912)
Courtesy the private collection of Roy Winkelman