When John George Ament was born on 6 June 1907, in Bluffton, Otter Tail, Minnesota, United States, his father, Jacob Henry Ament, was 44 and his mother, Mathilda Magie Herriges, was 36. He married Mercedes Margaret Kunnari on 9 July 1935, in Minneapolis, Hennepin, Minnesota, United States. They were the parents of at least 2 daughters. He lived in Blowers Township, Otter Tail, Minnesota, United States in 1910. He died on 30 April 1993, in Wadena, Wadena, Minnesota, United States, at the age of 85, and was buried in Wadena, Wadena, Minnesota, United States.