Theodore was born in Wolverhampton in 1893, the son of Eli and Alice Ison. In 1901 they were living at 127 All Saints Road, Wolverhampton (Theodore’s birthplace is given here as Dudley, but his birth was registered in Wolverhampton). His siblings at home are Annie, Herbert, Alice, Sidney and Clarrice. They are at 274 All Saints Road by 1911, by which date Theodore is a labourer at an iron foundry.
On 13 August 1914 Theodore enlisted with the Royal Army Medical Corps (number 47691) and first served in France from 25 July 1915. On 12 September 1917, his name was listed in the Express & Star among the local men who had been wounded. Further details appear in his Pension Records. He received a gunshot wound to the head in August 1917, and was admitted to hospital on 26 August 1917, before being sent to England. He was discharged from hospital on 23 October 1917. Although he recovered from the wound, he later complained of “general weakness and occasional pains in the head”. The Medical Examiner found his general condition to be good and confirmed he had no disability as a result.
Theodore married Lily Stanley in Wolverhampton in 1920 and they had a son, Stanley F, in 1933. Theodore died in Wolverhampton in 1971.