6 Bomber Group June 14/15, 1944
37 Lancasters from 408, 419, and 428 squadrons were joined by 155 Halifaxes from 420, 424, 425, 426, 427, 429, 431, 432, 433, and 434 squadrons on an attack of the rail yards at St. Pol and Cambrai. The crews were over the target at between 6,000 and 13,000 feet, releasing 1,518,000 lbs of high explosives. According to reports, there was some haze and cloud over the targets and bombing was scattered. Richard Koval (6bombergroup.ca)
424 Tiger Squadron (Castigandos castigamus) RAF Skipton-on-Swale. Halifax III aircraft LW 121 QB-X was shot down by night fighter pilot Uffz Kurt Leitner of 2/NJG4 during an operation to bomb rail facilities at Cambrai, France in support of the D-Day landings. The Halifax was abandoned by the crew at 11,000 feet and crashed near Cambrai.
Warrant Officer Class 1 George Alexander Edwin Compton (RCAF), Flight Lieutenant Peter Cameron Hamilton (RCAF), Pilot Officer Calvin Becker Cornelius (RCAF), Flying Officer Charles Gordon Pallett (RCAF) and Sergeant Walter Lawrence Cousins (RAFVR) all survived to become Prisoners of War
Flying Officer Donald Robert McCormick (RCAF) and Warrant Officer 2nd Class Robert Charles McCubbin (RCAF) both survived and avoided capture as Evaders
Royal Air Force Serial and Image Database
14/15 06 1944 424 (Tiger) Squadron RCAF Halifax III LW 121 Flt Lt Peter C....
330 aircraft - 61 Lancasters, 255 Halifaxes, 14 Mosquitoes - of 4, 6 and 8 Groups attacked railways al Cambrai, Douai and St-Pol. All of the targets were either partially cloud-covered or affected by haze and the bombing was not completely concentrated or accurate. 3 Halifaxes and 1 Lancaster were lost, the Lancaster being the Master Bomber's aircraft at Douai.
source: The Bomber Command War Diaries, Martin Middlebrook and Chris Everitt
Failed to return from attack on the rail yards at St. Pol and Cambrai, shot down by a night fighter, 15 June 1944. 2 killed 5 POW.
Bomber Command Museum Monthly ORB