1900 Jan/Mar . Born Leeds
1901 census living at Rose Garth, Chapel Allerton
1911 census a boarder aat a school at Lockers Park, Hemel Hempstead
1918 Nov 8. The Times records him being part of a guard of hounour by Sandhurst Caadets for King George V
1918 Decc 20. The undermentioned Gentlemen Cadets, from the R. Mil. Coll., to be 2nd Lts. 9th Lrs.—John Harold Anthony Tennant.
1920 Dec 20 . 9th Lancers.—The undermentioned 2nd Lts. to be Lts :. J. H. A. Tennant.
1921 Mar 23 Died age 21, in the Strokestown Ambush in County Roscommon.
1921 Mar. Buried Spofforth Churchyard. Son of Fred W. and Agnes Fraser Tennant, of Spofforth Grange, Harrogate.