When John Peter Corn was born on 25 February 1825, in Buncombe, North Carolina, United States, his father, William Corn, was 40 and his mother, Phoebe Adams, was 32. He married Caroline Byrd Davis on 6 June 1850, in Lumpkin, Dawson, Georgia, United States. They were the parents of at least 7 sons and 5 daughters. He lived in Nimblewill, Lumpkin, Georgia, United States in 1880 and District 840, Lumpkin, Georgia, United States in 1900. He died on 25 December 1902, in Lumpkin, Georgia, United States, at the age of 77, and was buried in Dahlonega, Cherokee, Georgia, United States.