Audrey,
The Commonwealth War Graves Commission (CWGC) website lists James Watton, a Private in D Company of the 10th Battallion of the Royal Inniskillen Fusiliers who died on 7 Dec 1917. He was 45 years old and is listed as the son of John and Mary Ann Watton of Coleraine and the husband of Eliza Watton of Tullans, Coleraine.
In Emerald Ancestors I found James Watton born to John Watton and Mary Ann Freeman on 1 Jun 1873 in Coleraine. There were two siblings listed on the IGI, Thomas, born 29 Jan 1876 and Martha, born 10 Jun 1979.
In Emerald Ancestors I also found James Watton married Eliza Wilson in St. Patricks Church of Ireland, Coleraine on 1 Jun 1900.
Hope the above is of some help.
Regards