Leonard was born 1881 in Hatfield, Herts. Son of James Scott a Railway Signalman (Working for the G.N.R. Company) and Annie Scott, of Mill Green, Hatfield, Herts. Baptised on 26th June 1881, in Hatfield, Herts.
1891 Census: Records Leonard aged 10, at school, living with his parents, brothers Frederick 17, Ernest 14, Vincent 7 and sister Edith 12, at Waterside Cottage, Mill Green, Hatfield, Herts.
1901 Census: Records him as William aged 19, working as a Railway Clerk, visiting Mr & Mrs Mathews at 31 Station Road, Enfield Chase, Middlesex.
1911 Census: Records him as single, (using the name William) and working as a Railway Porter in Wakefield, Yorkshire. He was boarding with Mrs Naylor at 68 Piccadilly, Wakefield, Yorkshire.