F/O A.Gabszewicz from Poland flew Hurricane's with No 607 Squadron during the Battle of Britain. later in the war he became a Group Captain and was credited with 8 confirmed kills plus 3 shared.
F/O D.R.Gamblen of No 41 Squadron was shot down and killed in his Spitfire I (N3038) on the 29th of July 1940 at 07:45hrs. He had been in combat with Ju 87's and Bf 109's off Dover.
P/O S.R.Gane was with No 248 Squadron during the Battle of Britain flying in Blenheim's. On the 20th of October 1940 he was on a recce sortie off the Norwegian coast flying in Blenheim IVf (L9453) when he was shot down and killed. The other members of the crew were M.D.Green & N.J.Stocks.
F/O F.T.Gardiner joined No 610 Squadron in July 1940. He was wounded in the arm on the 25th of July 1940 by a Bf 109 over the Channel at 15:20 but he managed to land safely. On the 25th of August 1940 he baled out of his Spitfire I (K9931) after combat with a Bf 109 over Dover at 19:20hrs and was slightly wounded. Also during the Battle of Britain he shot down a Bf 110. Gardiner was awarded the D.F.C. on the  10th of March 1944.
P/O J.R.Gardener a pilot from No 141 Squadron was on patrol on the 19th of July 1940 in a Defiant (L7016) when he was shot down by a Bf 109 of JG 51 and injured near Dover at 12:45hrs. His gunner D.M.Slatter was K.I.A.
Sgt B.G.D.Gardner joined No 610 Squadron on the 27th of  July 1940. Gardner shot down three Bf 109's on the 12th of  August and another on the 14th of August, when he was wounded in the arm.
While attached to No 3 Squadron in France, F/O P.M.Gardner claimed three victories there. On returning to No 32 Squadron after France fell, he added another before the start of the Battle. Gardner destroyed two Bf 109's on the 12th of August 1940, a Ju 88 on the 15th and another Bf 109 on the 16th.  Gardner was awarded the D.F.C. on the 30th of August 1940. On the 11th of July 1941 he was shot down over France and spent the rest of the war as a P.O.W.
Sub Lt. Richard Exton 'Jimmy' Gardner (F.A.A.) joined No 242 Squadron on the 1st of July 1940 from the RNVR. He wore naval Uniform but was subject to RAF discipline as if he was a full member of a Squadron.
Sgt W.J.Garfield of No 248 Squadon was killed along with his crew (B.W.Mesner & A.Kay) on the 13th of September 1940 at 19:00hrs. Their Blenheim IVf (L9451) went missing during a sortie off the Norwegian coast.
Sgt G.W.Garton flew  Hurricane's with No 43 Squadron during the Battle of Britain. He was later to become a Wing Commander an was awarded the D.S.O. and the D.F.C.
Sgt L.A.Garvey of No 41 Squadron was K.I.A. on the 30th of October 1940. He was shot down in his Spitfire II (P7375) by a Bf 109 over Ashford, Kent at 16:10hrs.
S/L G.Desmond Garvin of No 264 Squadron and his gunner F/Lt R.C.V.Ash were killed on the 28th of August 1940 at 09:00hrs. Their Defiant I (L7021) was shot down by a Bf 109 of JG 26 near Faversham.
P/O R.S.Gaskell of No 264  Squadron wrote off his Defiant (L6965) on the 24th of August 1940 at 16:00hrs when was in combat with a Bf 109. He was slightly hurt but his gunner (W.H.Machin) died of his wounds.
F/Lt L.M.'Elmer' Gaunce a Canadian flew with No 615 Squadron. He, A.Eyre and Dutch Hugo destroyed 3 Bf 109's over the convoy 'Bosom' in mid July 1940. On the 11th of August 1940 was awarded the D.F.C. Gaunce was wounded on the 18th of August 1940 at 13:15hrs in a Hurricane I (P2966). He was in combat with a Bf 109 near Sevenoaks in Kent and baled out of his stricken aircraft. L.M.Gaunce was shot down again on the 26th of August 1940 at 15:15hrs by a Bf 109, he baled out of his Hurricane I (R4111) off Herne Bay and was rescued. He was promoted to Squadron Leader with No 41 Squadron. On the 19th of November 1941 he was killed in action on a Rhubarb flying a Spitfire Vb (AB858) in the afternoon off St. Lo.
P/O G. 'Jeff' N.Gaunt of No 609 Squadron was shot down a killed in his Spitfire I (R6690) on the 15th of September 1940 at 12:30hrs near Kenly.
F/O J.R.H.Gaynor of No 615 Squadron was wounded when he crash landed on the 26th of August 1940 at 16:50hrs. His Hurricane I (P2878) had been in combat over Portsmouth.
Sgt R.J.V.Gent was with No 32 Squadron during July and most of August. Gent was  posted to No 501 Squadron in late August and shot down a Bf 109 on the 25th of October 1940. Sgt R.J.V.Gent was killed in a flying accident on the 2nd of January 1941, aged 24.
Sgt D.G.Gibbins joined No 54 Squadron  on the 10th of August 1940. Gibbins shot down an Me 109 on the 31st of August but was then his Spitfire(X4054) was shot down over Hildenborough and he baled out safely. It is believed he was shot down by a Hurricane. He scored one more kill before the end of the Battle.
P/O H.T.Gilbert of No 603 Squadron  baled out of his Spitfire I (V7260) on the 31st of August 1940 at 13:40hrs. He was shot down by a Bf 109 over the Thames Estuary but was not hurt. On the 6th of September 1940 he was wounded in combat with a Bf 109 over Mayfield at 09:30hrs. He baled out of his Spitfire I (V6647). 
F/Lt Denys E.Gillam of No 616 Squadron baled out of his Spitfire I (X4181) on the 2nd of September 1940 at 16:35hrs. He had been in combat with a Bf 110 over Tonbridge, Kent. He was unhurt.
F/O J.Gillan joined No 601 Squadron on the 5th of August 1940. Following a combat on the 11th of August 1940, at 10:50hrs off Portland in his Hurricane (P3783) was posted M.I.A., aged 26.
F/Lt K.McL Gillies from No 66 squadron was K.I.A. on the 4th of October 1940 at 16:00hrs while on patrol in his Spitfire I (X4320). He failed to return from an interception of a He 111 off the East Coast. His aircraft crashed off Covenhithe, Suffolk.
P/O K.R.Gillman joined No 32 Squadron on the 10th of May 1940, but did not fly his first operational sortie until the 7th of June 1940. K.R.Gillman shot down a Bf 109 on the 19th of July 1940. P/O KR Gillman was shot down and killed on the 25th of August 1940, at 19:00hrs off  Dover in a Hurricane I (P2755), aged 19.
P/O G.K.Gilroy of  No 603 Squadron was injured on the 31st of August 1940 at 18:20hrs. He baled out of his Spitfire I (X4271) over Wanstead after combat. He was injured by civilians who attacked him?
Sgt A.G.Girdwood of No 257 Squadron was on patrol in his Hurricane I (P3708) on the 18th of August 1940. He baled safely out after combat with a Bf 110 over the Thames Estuary, at 18:00hrs. Girdwood was K.I.A on the 29th of October 1940 at 16:40hrs while he was taking off in his Hurricane I (V6852) from North Weald as the airfield was under attack by Bf 109's of LG 2.