Sir Thomas Mitchell (1792 - 1855)

In 1827, with the support of Sir George Murray, Mitchell became Assistant Surveyor General of New South Wales with the right to succeed John Oxley. Oxley died the following year, and on 27 May 1828, Mitchell became Surveyor General.

In this post he did much to improve the quality and accuracy of surveying – a vital task in a colony where huge tracts of land were being opened up and sold to new settlers. One of the first roads surveyed under his leadership was the Great North Road, built by convict labour between 1826 and 1836 linking Sydney to the Hunter Region. The Great South Road (now replaced by the Hume Highway), also convict-built, linked Sydney and Goulburn. As Surveyor General, Mitchell also completed maps and plans of Sydney, including Darling Point, Point Piper, the city, and Port Jackson. In 1834 he was commissioned to survey a map of the Nineteen Counties. The map he produced was done with such skill and accuracy that he was awarded a knighthood