Sgt J.McAdam of No 41 Squadron baled out of his Spitfire I (N3118) off Dover on the 24th of September 1940 after combat at 13:45hrs. He was rescued from the Channel. 
F/L J.H.G.McArthur of No 609 Squadron shot down a Dornier over the Thames Estuary on the 7th of September 1940 in his Spitfire.
P/O J.A.P.MacClintock from No 615 Squadron baled out on the 26th of August 1940 at 15:10hrs. His Hurricane I (R4121) had been shot up by a Bf 109 over Sheerness.
P/O W.W.McConnel an Irishman served with No 607 Squadron, No 245 Squadron & No 249 Squadron's during the Battle of Britain in Hurricane's.
P/O B.M.McDonough was an Australian flying with No 236 Squadron in Blenheim's during the Battle of Britain.  He was killed on the 1st of August 1940 along with the gunner (F.A.P.Head) of the Blenheim IV (R2774) during an attack on Querqueville, France at 17:15hrs.
Sgt Andrew McDowall joined No 602 Squadron before the War. On the 24th of July 1940 he shot down a He 111 at night. During  August shot down 2 more, a Bf 109 and another He 111. He was busy in September and bagged a Bf 109 a Bf 110 and a Ju 88. He was busier in November shooting down 4 Bf 109's and another Ju 88. He had 11 kills and 2 shared to his credit. In the latter part of the war he commanded the first Meteor Jet Fighter Squadron.
Sgt H.W.McGowan of No 92 Squadron was wounded on the 14th of September 1940. He baled out of his Spitfire I (R6624) after combat with a Bf 109 over Faversham at 19:00hrs.
P/O J.K.U.B.McGrath was part of No 601 Squadron's detachment in France flying a Hurricane. He scored three kills up to the 8th of August 1940, he shot down two Bf 109's on that day, and added two Bf 110's on the 11th. On the 13th he shot down a Ju 88 and a Bf 109. McGrath was awarded the D.F.C. on the 27th of August 1940.
F/L G.R.McGregor a Canadian was possibly the oldest R.C.A.F. pilot to see service. He was with No 1 (R.C.A.F.) Squadron during the Battle and was 38 years old. He shot down four aircraft during the Battle and was awarded the D.F.C. on the 25th of October 1940. He commanded the Squadron from November before going to No 2 (R.C.A.F.) /402 Squadron as the Commanding Officer in January. F/L V.B.Corbett took over from him when he became the commander of the Canadian Wing in April. He flew his last operational sortie as a Group Captain on 28 March 1945, destroying a locomotive. Awarded the C de G in 1947 and the Czech Military Cross. After the war became President of Air Canada.
P/O P.R.McGregor of No 46 Squadron was injured on the the 11th of September 1940 at 15:40hrs. His Hurricane I (P3094) crash laned near Staple Cross in Kent.
Sgt. Robert 'Bob' McGugan was a gunner with No 141 Squadron in Defiant's during the Battle.
P/O D.B.H.McHardy of No 229 Squadron became a P.O.W. on the 26th of October 1940 when his Hurricane I (V6704) was shot down off the French coast by a Bf 109 after attacking a He 59 at 11:30hrs.
Sgt. P.R.C.McIntosh was posted to No 151 Squadron on the 7th of  July 1940 . McIntosh was posted away on the 13th of September1940. McIntosh was on patrol with No 605 Squadron on the 12th of October 1940 in the Romney Marsh area when they engaged a large number of Bf 109's at 12:30hrs. He was shot down and killed , aged 20. His Hurricane I (P3022) was found near Littlestone Golf Course. He is buried at St Johns, Shirly, Croydon.
P/O A.G.McIntyre of No 111 Squadron landed his badly damaged Hurricane I (P3595) at Hawkinge on the 15th of August 1940. He had been in combat over Thorny Island at 18:00hrs. The Hurricane was written off and he was slightly wounded. 
Sgt. D.A.S.McKay of No 501 Squadron baled out of his Hurricane I (N2617) safely on the 18th of August 1940 at 13:30hrs. He was one of four Hurricane's from the Squadron shot down over Canterbury by Gerhard Schöpfel of III Gruppe of JG 26 flying a Bf 109.
F/L Archie Ashmore McKellar of No 605 Hurricane Squadron from Paisley, Scotland was a plasterer in his fathers business before he joined the A.A.F. in 1938. He was short in stature being only 5ft 3ins. He shared in the shooting down of the first Heinkel bomber to perish over Britain. McKellar shot down at least 3 Heinkels on the 15th of August 1940 and on the 9th of September scored four more kills. On the the 11th of September 1940 he took over command of No 605 Hurricane Squadron from Squadron Leader Walter Churchill. Another four were shot down by McKellar on the 15th of September 1940. He was awarded the D.F.C. and Bar also the D.S.O. On the 7th of October his score rose another five kills, all Bf 109's. McKellar shot down 21 enemy aircraft before his death on the 1st of November 1940 when he was in combat with Bf 109's over Kent. His Hurricane I (V6879) crashed at the side of Woodlands Manor near Addisham at 18:20hrs. A.A.McKellar is buried at New Eastwood, Glasgow.
P/O J.W.McKenzie of No 111 Squadron was shot down in his Hurricane I (P3922) and killed by a Bf 109 on the 11th of August 1940 off Margate at 14:20hrs.
William Lidstone 'Willie' McKnight was born in Edmonton, Alberta, Canada in 1918 and was commissioned in the R.A.F. in 1939. He was posted to No 615 Squadron in May 1940 who were in France. On the 19th of May 1940 McKnight shot down his first German. He then transferred to No 242 Squadron and was involved in fierce fighting over Dunkirk where he claimed 8 kills (possibly 10). McKnight was awarded the D.F.C. On the 30th of August 1940 he shot down 3 Bf 110's. He had 4 more kills in September and a Bf 109 in November. He was then awarded the Bar to his D.F.C. W.McKnight was K.I.A. on the 12th of January 1941 in his  Hurricane I (P2961) by a Bf 109 on a fighter sweep over France. 
S/L E.A.McNab was a Canadian Commanding Officer On an exchange attachment to the R.A.F. when the war started, he returned to Canada to take command of No 1 (R.C.A.F.) Squadron and returned to England with them. He flew occasionally with No 111 Squadron, while sharing their base at Croydon, to gain operational experience and downed a Do 215 on the 15th of August 1940 on one of these sorties. Once No 1 (R.C.A.F.) Squadron was operational he shot down a further 6 planes and was awarded the D.F.C. on the 22nd of October 1940. In November he returned to Canada. He was  also awarded the Czech Military Cross.
Sgt. Robin J.McNair completed his flying training in the August of 1940, and was posted, as a sergeant pilot, to Wick, joining No 3 Squadron, which had suffered severe casualties in the Battle of France and was defending  Scapa Flow. The squadron were equipped with Hurricane's and had been since May 1939, when it was based at Biggin Hill.. With the Battle of Britain just past its climax he was posted on September the 15th to No 249 Squadron at North Weald, under the command of John Grandy.
Robin McNair was posted to No 96 Squadron in December 1940.
Sgt A.L.McNay from No 73 Squadron was killed on the 5th of September 1940 . He was shot down in combat in his Hurricane I (P3224) over Burnham, Essex at 15:30hrs.