97 Squadron (Achieve Your Aim). Lancaster aircraft was shot down in the sea off the Isle of Urk, Holland. Flying Officer S.L. McBurney, Warrant Officer C.C. Trude'', and FS S.F. Mattoon were also killed. One RAAF, and three RAF members of the crew missing believed killed.
Addendum: Lancaster aircraft ED 333 (OF-B). Sgt.s J. Izatt (RAF), W.H. Kelleher (RAF), and G, Bull (RAF) were also killed.
Thorneycroft, Leonard Everett (Warrant Officer 2nd Class)
Killed in Action 1942-December-17

Birth Date: 1913
Born:
Parents: Son of Samuel Thorneycroft, and of Auriole Thorneycroft, of Wilcox, Saskatchewan, Canada.
Spouse:
Home: Craven, Saskatchewan
Enlistment:
Enlistment Date: unkown date
Service
RCAF
Unit
97 (B) Sqn- Squadron (RAF)
Achieve Your Aim
Base
Rank
Warrant Officer 2nd Class
Position
Observer
Service Numbers
R/78983