Leonard Chapman was a flight instructor Royal Air Force Volunteer Reserve having reached the rank of Flying Officer. Having attended the School he then worked at Lords Cricket Ground before moving to the Gas Company in High Wycombe.
He represented Wycombe Wanderers for four years and was a keen cricketer.
On September 4th 1943 he was on a training flight in a Miles Master II with a member of the Turkish Air Force, Hakki Akarcay when he was shot down and crashed near Cabourne Parva, Caister Lincolnshire. Lt Baak of 14./KG 2 (a Me 410 outfit used for Intruder/nuisance bombing of UK) claimed a "two-engine aircraft" at 0351hrs (German time) on 4 September 1943 at 200 m south of Lincoln.
He is buried in High Wycombe cemetery and his listing with the Commonwealth War Graves Commission can be found here.