Percy Maxwell Muller
1881 Born in Montrose
1911 Aviation engineer, living in Woodford, Essex[1]
1913 Living in Weybridge when he gained his aviator's certificate at the Ducrocq Flying School, Brooklands[2]
WWI Presumably works manager of the Vickers aircraft works at Weybridge
1921 An engineer, when he joined the Weybridge Freemasons' Lodge.