John Mayfield was born 16 March 1874 in Gympie, Queensland, Australia to James Mayfield (1842-1920) and Nancy Hayes (1845-1910) and died 17 November 1930 Gympie, Queensland, Australia of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Esther Beatrice Mayfield (1900-1968) | 7 March 1900 Gympie, Queensland, Australia | 28 July 1968 Gympie, Queensland, Australia | Herbert Harold Carne (1897-1970) |
Siblings
| Name | Birth | Death | Joined with |
| John Mayfield (1874-1930) | 16 March 1874 Gympie, Queensland, Australia | 17 November 1930 Gympie, Queensland, Australia | Kaia Guttormsen (1872-1939) |