Sgt. Armstrong was serving with 9 Sqdn. He was a crew member of Wellington IC R1455 WS-D which took off from Honington on a mission to Kiel. It is thought to have been hit by flak and came down in the sea off the coast of Denmark.
Royal Air Force Bomber Command Losses of the Second World War; 1941; W.R. Chorley; 1993; Midland Counties Publications; ISBN 0 904597 87 3.
Tony Hibberd has provided the following:
Wellington R1455 WS-D had departed Honington at 2114 for Ops Kiel
It was engaged by 3/Res Flak Abt 607, hit and shot downThe aircraft crashed near Hojer at 0035
Nachtjagd Combat Archive The Early Years Part 2 Dr Theo Boiten
Thomas Armstrong is remembered at Wallsend on W7.42 and in Willington Quay on W56.12