Son of Richard H. Frost, and of Ada M. Frost, of Germiston, Transvaal, South Africa; husband of F. W. Frost. Jack Frost shot down at least 15 enemy aircraft.
1st award of DFC LG 25 February 1941 - "In February, 1941, whilst on patrol covering a distance of 180 miles inside enemy territory, this officer attacked n enemy bomber on the ground, at Afmadu, and destroyed it. The next day, he intercepted a formation of three enemy bombers escorted by two fighters, which were attacking our ground forces. He immediately attacked the bombers, two of which lost height rapidly and crashed. Captain Frost was then himself engaged by the fighters. he destroyed one, drove the other off, and then shot down the remaining bomber. He displayed great courage, skill and determination against a superior number of enemy forces." Bar to DFC LG 27 July 1943- "For gallantry and devotion to duty in the execution of air operations."