Rex Wailes
Reginald "Rex" Wailes OBE, FSA, F I Mech E (6 March 1901 – 7 January 1986) was an English engineer and historian who published widely on aspects of engineering history and industrial archaeology, particularly on windmills and watermills. Wailes was born at Hadley Wood on 6 March 1901, the son of Reginald and Florence Wailes; his father was a mechanical engineer.