Thanks to his nephew Ross, Charles Robertson Olmsted will never be forgotten.
Pierre, the pilot seated in the front row on the right is my mother’s brother, Charles Olmsted of Ottawa. He died on May 1, 1944, while serving as an instructor in Bagotville, Quebec.
Ross
This search for who was who on this picture started a few years ago.
I only knew Wing Commander Sydney Ford. Last week Charles Robertson Olmsted was added.
This is now the latest version of the colorised photo done by Doug Banks last year. I have added one name.
Four pilots are still waiting for identification. I have a few hints, but I want to check them first.
The pilots are seen here again with all the staff and the ground crew. The date could be also August 21, 1942, two days after the Dieppe raid where three pilots were killed: Walker, Gardiner, and Monchier.
RCAF No. 403 Squadron 
Hi Pierre. Wondering if you were able to identify the last four pilots in the August 1942 403 at Catterick photo. I believe the pilot behind F/O Olmsted and next to Marshall in the second row is Mitch Johnston.
I will check on it and update the blog.
That pilot has a bar on his sleeve which means it would be plausible since he was a Sergeant on August 11 1942…
Tuesday, 11 July, 1942
Weather 6/10ths cloud with the wind at 10 to 15 mph from the NW. At 1200 hours, a scramble was done by Blue Section, P/O Gardiner and F/O Wiejski, over the base and returning in 20 minutes without contact being made. General flying was done by ‘A’ Flight – aerobatics, cine gun, tail chase and formation. Good news for the Squadron, for today commissions were granted to six NCO pilots: F/S G.D. Aitken, F/S H.S. Anderson, Sgt H.J. Murphy, F/S C.R. Olmsted, Sgt M. Johnston and Sgt Monchier, all effective 20 June, 1942. This action will strengthen the Squadron immeasurably and prove a real factor in building up morale. Word was received that the AOC of the Group has recommended that court-martial action be taken against P/O J.E. Gardiner after a review of the Summary of Evidence.
And then a Pilot Officer on August 16…
Sunday, 16 August, 1942
The Squadron took off at 0845 hours for Manston, landing at North Weald owing to bad weather and arriving at Manston at 1400 hours. The second ground party left by train, owing to bad weather at Catterick. The weather was fine at Manston but two a/c overshot on landing (AA736 and AA979). P/O H.S. Anderson broke a shoulder blade and was taken to hospital while P/O M. Johnston was uninjured.