Career
A Canadian by birth educated at the University of Toronto, Kerby was commissioned into the Royal Naval Air Service in 1915 during World War I. He was appointed Officer Commanding Number. 4 Fighter School at Freiston in 1918. He went on to command Number.
504 (County of Nottingham) Squadron in 1934 and to be Air Attaché in Peking in 1936.
He served in World World War II as Officer Commanding Number. 72 Wing and then as Station Commander at Royal Air Force Binbrook before becoming Air Officer Administration at Headquarters Royal Air Force in Northern Ireland in 1940.
He continued his war service as Air Officer Commanding AHQ East Africa in 1943 and Air Officer Administration at Headquarters Royal Air Force Coastal Command in 1944 before retiring in 1946.