Robert Cork was born circa 1819 in Isle of Wight, England to Robert Cork (bef1804-aft1819) and Sarah (bef1804-aft1819) and died 2 August 1889 Watsons Bay, New South Wales, Australia of unspecified causes. He married Jane Blackman (1830-1891) 25 March 1848 in Sydney, New South Wales, Australia.
At the time of his marriage he was captain of the brigantine Comet.
Children
| Name | Birth | Death | Joined with |
| Robert James Cork (1849-aft1894) | 11 July 1849 Glebe, New South Wales, Australia | 1894 | Frances Clara White (?-1913) |
| Henrietta Eliza Cork (1854-1943) | 22 April 1854 Nattai, New South Wales, Australia | 1943 Woollahra, New South Wales, Australia | |
| Lucretia Josephine Cork (1856-1910) | 1856 Camden, New South Wales, Australia | 29 January 1910 Watsons Bay, New South Wales, Australia | |
| Frederick Arthur Henry Cork (1858-1939) | 4 July 1858 Camden, New South Wales, Australia | 22 May 1939 17 Robinson Street, Chatswood, New South Wales, Australia | Isabella Edith Single (1865-1911) Ann Lydia Sarah Single (1860-1951) |
| Lorenzo George Albert Cork (1865-1900) | 1865 Camden, New South Wales, Australia | 21 November 1900 Newcastle, New South Wales, Australia | Lillian de Chateau (1868-1919) |
| Alfred Ernest Sherwin Cork (1869-1871) | 4 July 1869 Watsons Bay, New South Wales, Australia | 7 July 1871 Watsons Bay, New South Wales, Australia | |