Evance was a merchant in Charles Town, South Carolina, according to Rudolf Loeser in an e-mail, 1/12/2011, who cited "The Papers of Henry Laurens," 2:212n. (Laurens, Henry (1972). Papers of Henry Laurens. editors: Philip May Hamer, George C Rogers, David R Chesnutt. Columbia, S.C.: Univ. of South Carolina Press. ISBN 1570034656. OCLC 63771927.)
A book of receipts for payments made by Thomas Evance to various individuals for purchases and payment of debts. Items listed include a bedstead, horses, rent, rum, food, books, rice, a wig, chimney construction, coal, freight for 32,000 shingles, wages as overseer of a "plantation at Santee" (South Carolina?), and "Two Negro's [sic] sent up this year" [as slaves?].
Thomas Evance Receipt Book, 1754-1774, Archives Center, National Museum of American History