Mary Grant was born 1817 in Campbelltown, New South Wales, Australia to John Grant (1792-1866) and Jane O'Brien (1792-1826) and died 28 July 1888 'Bumbaldry', Cowra, New South Wales, Australia of unspecified causes. She married William Redfern Watt (1813-1894) 1837 .
|Offspring of William Redfern Watt and Mary Grant (1817-1888)|
|Jane Redfern Watt (1837-1917)||30 November 1837 Parramatta, New South Wales, Australia||6 December 1917 Petersham, New South Wales, Australia||William Philip Mylecharane (1830-1917)|
|Victor Holton Watt (1840-1930)||14 June 1840 Cowra, New South Wales, Australia||25 January 1930 Cowra, New South Wales, Australia||Martha Matilda Crook (1844-1914)|
|Mary Redfern Watt (1842-1907)|
|Eugene Grant Watt (1844-1913)|
|William Redfern Watt (1847-1929)|
|Hugh Wentworth Watt (1854-1929)|