Samuel Lusk married Sarah Bailey on Jan 5, 1804 (married by John Tollet). Then Samuel was appointed as a Lieutenant in Capt Andrew Perry's Company in June 1807. He eventually commanded that Company of Militia. I did find a Samuel Lusk in the 1790 Census of South Carolina, Camden District, Chester County, with 2 males 16 Yrs +, 1 male under 16 yrs, and three females. The males could be Sam Sr., Sam Jr., and David, but no certainty.