When Thomas Alvin Boyd was born on 10 October 1888, in Oxford Township, Guernsey, Ohio, United States, his father, William Charles Boyd, was 42 and his mother, Amanda Bell, was 33. He married Grace Jean Bethel on 25 June 1919, in Belmont, Ohio, United States. He lived in Dayton, Montgomery, Ohio, United States in 1920 and Detroit Ward 17, Detroit, Wayne, Michigan, United States in 1940. In 1920, at the age of 32, his occupation is listed as chemical engineer for general motors in Dayton, Montgomery, Ohio, United States. He died on 30 March 1989, in Wayne, Michigan, United States, at the age of 100.