One of three soldier sons of Alderman John and Jeanie (Todd) Tyrrell, of Belfast, Walter Alexander Tyrrell joined the Royal Flying Corps in 1917. Assigned to 32 Squadron, he became an ace while flying the D.H.5. In 1918, he scored twelve more victories while flying the S.E.5a. The highest scoring ace in his squadron, Tyrrell was killed in action by enemy machine gun fire from the trenches. He was 19 years old.
Military Cross (MC)
T./2nd Lt. Walter Alexander "Tyrrell, Gen. list, attd. R.A.F.
For conspicuous gallantry and devotion to duty. On one day this officer attacked two enemy triplanes, destroying one and driving down the other out of control. After this he was attacked by two other machines, one of which he forced to land, taking the occupants prisoners. On various other occasions he has destroyed or driven down out of control enemy machines.