When George Washington Demoss was born in March 1854, in Homer, Claiborne, Louisiana, United States, his father, William M DeMoss, was 32 and his mother, Mary Ann C Brown, was 25. He married Carrie Lenora Allen on 15 December 1886, in Bossier City, Bossier, Louisiana, United States. They were the parents of at least 3 sons and 4 daughters. He lived in Police Jury Ward 4, Bossier, Louisiana, United States in 1900 and Ward Three, Bossier, Louisiana, United States in 1910. He died on 15 September 1943, in Shreveport, Caddo, Louisiana, United States, at the age of 89.