Susannah Gill was born 26 December 1876 in Jones Island, New South Wales, Australia to William Gill (1822-1897) and Susannah Lawrence (1838-1903) and died 15 February 1967 West Maitland, New South Wales, Australia of unspecified causes. She married Richard Unicomb (1875-1957) 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-) | |||
Changes of surname by daughters:
- Muriel Daphne Unicomb (ka Merle) married Arthur V Elliott in 1918, and Evelyn J Macintosh in 1932
- Doreen Valmai Jean Unicomb married Frank Hill Evans in 1936