Mary Williams Threlkeld was born 23 September 1823 in Raiatea to Lancelot Edward Threlkeld (1788-1859) and Martha Goss (-1824) and died 1887 Sydney, New South Wales, Australia of unspecified causes. She married George Alfred Lloyd (1815-1897) 1 July 1841 in Sydney, New South Wales, Australia.
Children
| Name | Birth | Death | Joined with |
| Eleanor S Lloyd (c1842-c1909) | |||
| George A Lloyd (c1843-c1921) | |||
| Mary W Lloyd (c1846-c1921) | |||
| James C Lloyd (c1847-c1914) | |||
| Arthur T Lloyd (c1849-c1891) | |||
| Charles E Lloyd (c1851-) | |||
| Lancelot T Lloyd (c1854-c1907) | |||
| Benjamin C Lloyd (c1862-) | |||
| Henry M Lloyd (c1863-c1863) | |||
Footnotes (including sources)
| ‡ General |