Harry Cecil Osborn, born on 9th November 1895, in Watford, Herts, was the second son of Charles Edwin Osborn, a Company Accountant and Elizabeth Helen Osborn, (nee Roberts), one of six children.
1901 Census records Harry aged 5, living with his parents, brother Charles 6, and sister Bessie 1, at "The Homestead" Suffolk Road, Suffolk Terrace, Bournemouth, Hants.
Some time between 1901 & 1902 the family moved back to Watford. Harry attended Watford Boys Grammar School from 1904 until 1911.
1911 Census records Harry aged 15, at school, living with his parents, brothers Charles (a Bank Clerk), Jeffrey 3, sisters Bessie 11, Doris 9 and Maria 6, at 4, Kingsfield Road, Watford, Herts.
Charles and Elizabeth later moved to "Meadowcroft" 334, Westborough Road, Westcliff-on-Sea, Essex. Elizabeth died on 1st April 1919.