Carter was the highest scoring ace to serve with 19 Squadron. On May 19, 1918, he was captured behind enemy lines after his Sopwith Dolphin was shot down by Paul Billik of Jasta 52. Shortly after the war ended, he was killed in a flying accident while testing a Fokker D.VII.

Distinguished Service Order (DSO)
"For conspicuous gallantry and devotion to duty. He destroyed two enemy aeroplanes, drove down several others out of control, and on two occasions attacked enemy troops from a low altitude. He showed great keenness and dash as a patrol leader." DSO citation, London Gazette, July 18, 1918

Distinguished Service Order (DSO)Bar
"For conspicuous gallantry and devotion to duty as a fighting pilot. In three and a half months he destroyed thirteen enemy machines. He showed the utmost determination, keenness and dash, and his various successful encounters, often against odds, makes up a splendid record." DSO Bar citation, London Gazette, September 16, 1918