Peter Trexler, Jr., son of Peter, second, was born Aug. 15, 1748, and died March 13, 1828. He was a captain in the Revolutionary War, promoted to major in 1781 and in 1783, was chosen lieutenant colonel of the Third Battalion of the county. He was elected county commissioner in October. 1782, and was elected a member of the Assembly in 1785, 1786, 1787, and 1788. He removed to Mertztown, Berks County, where he died March 13. 1828. He married, Dec. 15, 1772, Catharine, daughter of Henry Grim. She was born July 20, 1757, and died July 7, 1828. They are buried in a private cemetery near Mertztown.