Captain Gother Kerr Mann (February 1808 – 1 January 1899), often referred to as Captain Mann, was a consulting engineer in New South Wales.
Mann was born in England, a son of General Cornelius Mann R.E., and secured a commission with the Bombay Horse Artillery, which saw considerable action. He left India for Australia in 1836, settling in Sydney, where he helped found the Volunteer Artillery Corps.He was a member of Archibald Boyd's exploration party, active in the Clarence area around 1838.[1] He married a daughter of Frederick Augustus Hely (died 1836),[2] from whom he inherited on Narara Creek and on Wyong Creek, which may be the properties named Cungelbung and Buccarumbi.[3] He operated a sawmill at Wyoming, New South Wales with James Hooke, another son-in-law of Hely, and built a cottage nearby.
He was appointed magistrate at Gosford in 1850.
In July 1855 he was appointed the first Railways Commissioner for New South Wales.[4]
He supervised the construction of Fitzroy Dry Dock at Cockatoo Island and designed the wharf layout at Circular Quay.[5] In 1859 he was appointed Superintendent of the Penal Establishment and Engineer-in-Chief of the dock establishment at Cockatoo Island.[6]
He retired from government service in 1870[4] and was appointed captain of the Volunteer Engineering Corps.[7]
Mann Street, Gosford, was name for him,[4] as was the Mann River,[3] although the latter has been disputed.
The eastern tip of Greenwich, where their home "Greenwich House" was situated, is called Manns Point.
Mann married Mary Johanna Hely of Wyoming, New South Wales, on 3 January 1838[8] and had 12 children.
In 1853 he purchased "Greenwich House" at Greenwich Point,[9] Sydney, where he lived the rest of his life.[5]