Career
His record shows him to have been a notable team player in squadron tactics. Wallace originally served with 9 Squadron Royal Naval Air Service in 1917 as a Sopwith Camel pilot. He then transferred to 1 Squadron Royal Naval Air Service in early 1918.
On 11 March 1918, he scored a solo victory, driving an Albatros Doctorate.V down out of control.
Wallace would not score again until 2 May, when he, Reginald Brading, Samuel Kinkead, and several other British pilots sent a hapless German observation plane down out of control. Wallace thus became an ace.
He then transferred to 3 Squadron as the C Flight Commander. On 20 July 1918, he and Adrian Franklyn drove a Hannover two-seater observation plane down out of control.
The next day, he became a balloon buster, teaming with Riley to bring down a German observation balloon.