He was also known as Dewalt, Devault, and Theobald, Devault came to Philadelphia, Pennsylvania with his family in 1732 on the "Loyal Judith." Devall Coonce and John Coons together witnessed the will of Ballish Fought on May 29, 1751 in Frederick Co., MD. On Feb. 12, 1754 he purchased 70 acres in Frederick Co., MD known as "Devaull's Lot" Deval Conce and his wife Margaret sold to Jacob Gallman on Feb. 21, 1755, 70 acres of land on Grooses Branch in Frederick Co. On Feb. 2, 1756 Devault Coonce and Margaret sold to Edward Matthias 100 acres on Abraham Creek at the foot of Kittocton Mountain called "Davis Delight" in Frederick Co. On Aug. 22, 1770 Devault Coons and Margaret sold to William Flick a lot in Sharpsburg, Frederick Co. The variation in spelling is due to the scribes interpretation of the sound of his name, as Devault signed his name "X".