When William Grimes Quinn was born on 28 June 1869, in Smith Township, Belmont, Ohio, United States, his father, Dr Charles Edward Quinn, was 30 and his mother, Lucinda M Noffsinger, was 27. He married Margaret S. Tinsley in 1907. They were the parents of at least 2 sons and 2 daughters. He lived in Ohio, United States in 1870 and McLennan, Texas, United States in 1880. He died on 6 August 1955, in Fort Worth, Tarrant, Texas, United States, at the age of 86, and was buried in Rose Hill Cemetery, Chickasha Township, Grady, Oklahoma, United States.