Bernard Leonard was born in 1832 in Scotland. He died on 8 March 1873 in Greenough, Western Australia, Australia. When he was 38, he married Mary Jane Brandis,daughter of William John Brandis and Charlotte Lamb, in 1870 in Irwin River, Western Australia, Australia.

Bernard Leonard was employed as a Labourer - Dongara, Western Australia. He was affiliated with the Roman Cathlic religion. Convict Number: 1855 (#3702) Immigration: Arr.: 10 July 1855 in Western Australia, Australia (Per "Adelaide") Ticket of Leave: 31 August 1857 Pardon: 5 June 1860 (Conditional)

Bernard Leonard and Mary Jane Brandis had the following children:

1. John Edward "Jack" Leonard was born in 1871 in Dongara, Western Australia, Australia. He died on 31 July 1958 in Kenwick, Western Australia, Australia (Albany Highway). He married Selina May Brandis in 1904 in Irwin River, Western Australia, Australia.
2. Charlotte Elizabeth Leonard was born in 1873 in Perth, Western Australia, Australia. She died on 21 November 1953 in Mount Hawthorn, Western Australia, Australia. She married Edwin Henry Wakefield in 1897 in Perth, Western Australia, Australia.