Career
Kayll joined the Auxiliary Air Force in 1934, serving with Number. 607 (County of Durham) Squadron rising to become a flight lieutenant. Following the outbreak of the war he volunteered for full-time service and fought in France in early 1940 before taking part in the Battle of Britain, commanding Number.
615 (County of Surrey) Squadron as an acting squadron leader.
During the Battle of Britain Kayll was credited with shooting down seven German aircraft with one shared and six unconfirmed destroyed, along with six damaged. In 1941, he was promoted to wing commander and given command of The Hornchurch wing of three Spitfire squadrons.
In 1941 he was mentioned in despatches before being shot down over France in July. He was subsequently captured by the Germans and became a prisoner of war.
He became Senior British officer (SBO) at Oflag IX until moved to Oflag VI-B Warburg in October 1941.
He was transferred to Stalag Luft III at Sagan in May 1943, and was in charge of the Escape Committee for the East Compound. He remained in captivity for the remainder of the war, co-ordinating numerous escape attempts, for which he was later appointed an Officer of the Order of the British Empire in 1946. After the war he continued to serve, rejoining the Royal Auxiliary Air Force, and commanding Number.
607 (County of Durham) Squadron.
In civilian life he served as a justice of the peace and as Deputy Lieutenant of Durham.
