Martha Mary Cowan was born 29 July 1880 in Manning River, New South Wales, Australia to Murdoch Cowan (c1848-1929) and Jane Love (c1858-1899) and died 17 May 1963 Taree, New South Wales, Australia of unspecified causes. She married John Edward Hammond (1875-1957) 1 September 1901 in Taree, New South Wales, Australia.
Children
| Name | Birth | Death | Joined with |
| Vera Thelma Hammond (1904-1968) | |||
| Lorna Beryl Hammond (1907-1988) | |||
| Stewart Manning Hammond (1910-1972) | |||
| Edward Arthur Oxley Hammond (1913-1985) | |||
| Heather Maude Hammond (1921-1957) | |||
Footnotes (including sources)
| ‡ General |
| Ω Birth |
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| ₪ Wedding |
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| ¶ Death |
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| § Remains |