69 Squadron (With Vigilance We Serve). Lancaster aircraft JA 892 went down near Griefswald, Germany during a night attack against the V1 and V2 rocket sites at Peenemunde, Germany. One crew member, not Canadian, was also killed and five of the crew, not Canadians, missing believed killed.
Addendum: Sgt. D. Parkin (RAF) was also killed and five RAF members of the crew were taken Prisoners Of War.
Cenotaph at Hanover Cemetery, Hanover, Grey County, Ontario, Canada Holy Family Sec 2 Row 24
Wallner, John Isidore (Flight Sergeant)
Killed in Action 1943-August-17

Birth Date: 1920-February-29
Born:
Parents:
Spouse:
Home: Hanover, Ontario
Enlistment:
Enlistment Date: unkown date
Service
RCAF
Unit
69 Sqn- Squadron (RAF)
With Vigilance We Serve
Base
Rank
Flight Sergeant
Position
Air Gunner
Service Numbers
R/143738