(1720–81) military and political leader in southwestern Virginia during the French and Indian (1754–63) and Revolutionary Wars. Lewis, born in County Donegal, Ireland, gained his greatest prominence as a frontier military leader of the local militia in expeditions against the French on the Upper Ohio River. In 1774 he commanded forces that won an important victory over the Shawnee Indians that resulted in their ceding all territory south of the Ohio to Virginia. During the Revolutionary War, Lewis commanded troops against Loyalist forces in Chesapeake Bay (1776), successfully forcing them from the colony. Disappointed at not being made major general, he resigned from the Continental army in 1777.
From The Oxford Essential Dictionary of the U.S. Military in Oxford Reference.
Subjects: Warfare and Defence.