[1][2][3][4] Bowser was born in Whitchurch township, Ontario, Canada, present-day Aurora in 1892.
He left home at age 11, returning to the Toronto area at age 15, then working on several construction jobs including a tunnel to connect Eaton's store with the Annex, the Royal Ontario Museum, and the Bank of Toronto building.
The camp was pulled down at war's end but the PMQs (married quarters), drill hall and the officers mess still stand.
The PMQs are private homes on Arthur St. and surrounding streets, the drill hall is the Newmarket Curling Club and the officers mess is the Royal Canadian Legion on Srigley St. 'Jack' had a construction company in Aurora called ABC, Aurora Building Corp. which he ran until his death in 1956.
Buried in Aurora, Ontario his grave notably has a 10-foot-high (3.0 m) replica of the Empire State Building as a marker.