Morrow enlisted during May 1917. He was then posted to
No. 62 Squadron RFC on 30 October 1917, and shipped out to France with this unit. The haste with which he was commissioned and posted indicates that he took at least some of his aviation training during the Summer of 1917. After scoring three wins, he was hospitalized for a short while beginning 29 June 1918. He returned to winning form on 10 August 1918, driving down two German
Pfalz D.III fighters to become an ace. Morrow's final sortie is vividly described in the award citation for his
Distinguished Flying Cross: :"On the 22nd August, whilst leading an offensive patrol, this officer attacked ten Fokker biplanes and Pfalz scouts, driving down one in flames. In the engagement he was wounded and became unconscious; regaining consciousness, he found that his machine had got into a spin and was on fire. With a supreme effort, although very weak, he succeeded in landing within our lines, where he was with great difficulty extricated from the burning machine." Having crashlanded near
Ficheux, France, with bullet wounds to the leg, Morrow was dragged from the flaming wreckage by his observer, Louis Mark Thompson. Morrow's left lower leg was subsequently amputated. Both Thompson and Morrow were recommended for the Distinguished Flying Cross. The latter's award was
gazetted on 2 November 1918, well after his 5 September
medical evacuation to England. ==List of aerial victories==