When Major John George Ament was born on 1 June 1788, in Franklin, Municipality of Murrysville, Westmoreland, Pennsylvania, United States, his father, John George Ament, was 29 and his mother, Esther G. Markle, was 21. He married Elizabeth Walton about 1804, in Westmoreland, Pennsylvania, United States. They were the parents of at least 3 sons and 4 daughters. He lived in Franklin Township, Westmoreland, Pennsylvania, United States in 1860. He died on 6 May 1867, in Franklin, Municipality of Murrysville, Westmoreland, Pennsylvania, United States, at the age of 78, and was buried in Export, Westmoreland, Pennsylvania, United States.