April 1836) Bourke also appointed Captain William Lonsdale as police magistrate, chief agent of the government and commandant of the district. Captain William Hobson (later Governor of New Zealand) was instructed to accompany Lonsdale, his family and public officers to Port Phillip. The presence of a warship together with the Governor's agent indicated the Governor's intention to re-take control of the situation in Port Phillip. Lonsdale arrived at Port Phillip with his wife Martha, 7-month-old daughter Alice and his one assigned servant, on board , commanded by Hobson. They anchored at the south end of the Bay on 27 September 1836, where Hobson despatched a cutter for survey work, and by 29th had proceeded north and anchored off Point Gellibrand, Hobsons Bay, near the mouth of the Yarra River. Lonsdale landed unofficially, distributing the official proclamation of the establishment of the new settlement, and did the same the next day. On 1 October 1836 Lonsdale was formally rowed up the Yarra River and was met by John Batman and Dr Thompson and other assembled settlers. Bourke also commissioned Robert Hoddle to make the first plan for the town, completed on 25 March 1837, which came to be known as the Hoddle Grid. The surveys were intended to prepare for land sales by public auction. Bourke visited Port Phillip in March 1837, confirmed Lonsdale's choice of a site for the new town and named it Melbourne on 10 April 1837 after the then British prime minister William Lamb, 2nd Viscount Melbourne, who resided in the village of Melbourne in Derbyshire. The General Post Office opened under that name on 13 April 1837.[16] Before being officially named, the town had several interim names – including Batmania, Bearbrass, Bareport, Bareheep, Barehurp and Bareberp. Public auctions for land began in June 1837. The compensation of the Port Phillip Association were only recognised to the extent of £7,000, allowed as a reduction on the purchase price of land bought by the association. Most of the members sold their entitlements to Charles Swanston. George Gipps became Governor of New South Wales in 1838. In October 1839, he appointed Charles La Trobe as Superintendent of the district. He was a gifted man with artistic and scientific interests who did much to lay the foundations of Melbourne as a real city. La Trobe's most lasting contribution to the city was to reserve large areas as public parks: today