FROM: Francis B. Heitman, Historical Register of Officers of the Continental Army, p.328 KELLAR, Abraham (Va). Captain of Clark's Illinois Regiment, 17791782. KELLER, Adam (Pa). Ensign 10th Pennsylvania, 20th April, 1777; 2d Lieutenant, 1st November, 1777; 1st Lieutenant, 3d June, 1778; retired 1st July, 1778. KELLER, Stoeffel (Pa). Ensign of Hart's Pennsylvania Battalion of the Flying Camp, July to December, 1776.