William Avery was born 30 April 1848 in Dungog, New South Wales, Australia to James Avery (c1814-1875) and Catherine Heaslip (c1825-1904) and died 3 August 1926 Dungog, New South Wales, Australia of unspecified causes. He married Charlotte Elizabeth Ireland (1859-1948) 30 January 1877 in Bulahdelah, New South Wales, Australia.
Children
| Name | Birth | Death | Joined with |
| Mary Ann Avery (1879-1971) | |||
| Catherine Avery (1880-1964) | |||
| Charlotte Elizabeth Avery (1883-1948) | |||
| Florence Avery (1885-1980) | |||
| Amy Jane Avery (1888-1982) | |||
| May Avery (1889-1975) | |||
| Annie Avery (1891-1896) | |||
| Minnie Avery (1894-1985) | |||
| William James Avery (1897-1975) | |||
| Frederick Edward Avery (1898-1969) | |||
| Arthur Edwin Avery (1901-1972) | |||
Footnotes (including sources)
| Ω Birth |
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| ¶ Death |
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