From 1901 Oliver's occupation was Electrician Apprentice traininee.2
Occupation Notes
Census 1901: Invicta, Abbey Road, Torquay, Devon, aged 15, Electrician's Apprentice (recorded as Boarder but is Elizabeth's son from her first marriage)
His occupation was Butler full time in public administration for HM Government, at 10 Downing Street, London, England.3
Census 1901: Invicta, Abbey Road, Torquay, Devon, aged 15, Electrician's Apprentice (recorded as Boarder but is Elizabeth's son from her first marriage)