Richard Unicomb was born 22 September 1875 in Moto Plains, New South Wales, Australia to George Unicomb (1839-1918) and Svendsine Petronella Whatson (1842-1885) and died 2 October 1957 Coopernook, New South Wales, Australia of unspecified causes. He married Susannah Gill (1876-1967) 29 September 1897 Wesleyan Church in Jones Island, New South Wales, Australia.
Children
| Name | Birth | Death | Joined with |
| Muriel Daphne Unicomb (1898-1957) | |||
| Harvey Rex Unicomb (1899-1986) | |||
| Lawrence Basil Thornton Unicomb (1902-1977) | |||
| Doreen Valmai Jean Unicomb (1911-?) | |||