When Thomas Harold Ellis was born on 3 May 1890, in Wallaroo Mines, South Australia, Australia, his father, Thomas James Ellis, was 22 and his mother, Caroline Treloar, was 20. He married Winifred Christina Myrtle CLARK on 30 June 1917, in Wallaroo Mines, South Australia, Australia. They were the parents of at least 1 son. He died on 6 August 1958, in Exeter, South Australia, Australia, at the age of 68, and was buried in Cheltenham Cemetery, Cheltenham, South Australia, Australia.