O’Fallon, James (11 March 1749– December 1793), physician, speculator, and adventurer, was born in Roscommon, western Ireland, the son of William Fallon and Anne Eagan. (O’Fallon added the prefix to his name about 1783.) He studied medicine for two years at the University of Edinburgh (1771–1773), did not graduate, but was licensed by that or another institution as a physician. Thereafter he visited Rome, perhaps in anticipation of entering the priesthood. Subsequently, however, he worked at a hospital in London. In Glasgow in 1774 he was advised by a doctor at the university to go to the colonies, where a revolt was in the making “in favour of Liberty.” As his son John later wrote, “The strong spirit of freedom was already in James, and, (as a genuine Irishman) an hereditary aversion to British oppression” (Draper coll., 34J20)....