Augusta Bayly was born 17 May 1808 in Sydney, New South Wales, Australia to Nicholas Bayly (1769-1823) and Sarah Laycock (1783-1820) and died 26 December 1860 Sydney, New South Wales, Australia of unspecified causes. She married Andrew Allan (1798-1837) 4 December 1823 in Saint John's, Parramatta, New South Wales, Australia.
|Offspring of Andrew Allan and Augusta Bayly (1808-1860)|
|Augusta Sophia Sarah Allen (1824-1890)|
|Frances Caroline Allen (1826)|
|Andrew Bayly Moore Allen (1829-1863)|
|Henry Edward Augusta Allen (1831-1887)|
|Teignmouth George Paget Allen (1833-1833)|
|Emmeline Helen Allan (1837-1904)||20 September 1837 Liverpool, New South Wales, Australia||16 December 1904 Potts Point, New South Wales, Australia||Arthur Hannibal Macarthur (1830-1871)|