When Thomas Harry Ellis Sr was born on 2 May 1884, in Jackson Township, Vinton, Ohio, United States, his father, James Finley Ellis, was 27 and his mother, Mary Ann Bishop, was 23. He married Elizabeth Ann Nichols on 2 May 1908, in Logan, Ohio, United States. They were the parents of at least 1 son and 7 daughters. He lived in Galion, Galion, Crawford, Ohio, United States in 1920 and Blooming Grove, North Bloomfield Township, Morrow, Ohio, United States in 1940. He died on 16 August 1954, in Galion, Crawford, Ohio, United States, at the age of 70, and was buried in Iberia Cemetery, Iberia, Morrow, Ohio, United States.