When Leroy Clayton was born on August 22, 1895, in Finleyville, Pennsylvania, his father, Joseph, was 36 and his mother, Frances, was 33. He married Mabel E Spencer on December 22, 1915, in Brooke, West Virginia. He died on August 29, 1986, in New York at the age of 91, and was buried in Bronx County, New York.
Leroy Clayton enlisted in the Army in 1917 when he was 22 years old. He served in Company A of the 317 Engineering Division.
Leroy Clayton died on August 29, 1986, at New York, Presbyterian Hospital.