1898 Dec 7 Born Nottingham, Nottinghamshire
1901 census at All Saints Street, Nottingham
1911 census A boarder at a Prep School at Holme Leigh, Corbor Road, Buxton, Derbys.
1917 Dec 2. Commissioned 2nd Lt
1918 Feb 12. Lands in France
1918 Apr 5 Wounded . Published in 'Nottingham Evening Post',
News that Second Lieutenant John Howard Gem had been wounded only weeks after arriving in France . “LIEUT. J. H. GEM. “Canon Gem, vicar of Old Radford, Nottingham, has received intimation from the War Office that his younger son, Sec.-Lieut. John Howard Gem, R.F.A., was wounded on March 28th, whilst in action, and is now in hospital in London. On leaving Oundle School, Sec.-Lieut. Gem proceeded in due course to Weedon and Edinburgh, from which place he went to the front on March 13th . His elder brother, Captain A. H. Gem, M.C., Sherwood Foresters, was wounded last October.”
1919 Jun 2. RFA Promoted Lt
1920 Apr 1. RFA. The undermentioned Lts. relinquish their commns.: — And retain the rank of Lt.: — J. H. Gem.
1920 Dec 13. Joined ADRIC with service no 1220. Posted to L Coy
1921 Apr 19. Promoted Section Leader
1921 May 31 Posted to Q Coy . Promoted Platoon Commander and Intelligence Officer
1921 Jun 18 Gem as IO with a patrol of 1 S/L and 8 T/C make a raid, and find nothing
1921 Jun 19. Gem as IO with a patrol of 1 DI3, 1 S/L and 10 T/C make a raid, and find nothing
1921 Jun 22. Patrol of IO Gem, DI3 Towse, S/L JH Avery and 4 T/C (inc T/C Caulfeild) arrest Patrick Farrel
1921 Jun 22/23. Gem on patrol with 1S/L, 6 T/C fail to make an arrest
1921 Jun 26. A Q Coy patrol arrest John Nolan, who is identified as one of Hunt's murders. Gem was IO on this patrol and T/C CS Tennent was on it too
1922 Jan 19. Discharged on demobilisation of ADRIC
1929 Apr/Jun Married Bromsgrove, Worcs to Margaret A King
1935 Oct 17. His father's death
1940 Jun 12. Commission as Pilot Officer . John Howard GEM (80871).
1944 Sep 10. RAF Regiment. Promotion. Fit. Lts. granted the rank of Sqn. Ldr. (war subs.):— J. H. GEM (80871).
1954 Aug 10. Relinquishes his commission. Squadron Leaders, retaining the rank of Wing Commander J. H. GEM (80871
1986 Died Reading, Berkshire