King was assigned to survey the parts of the Australian coast not already examined by Royal Navy officer, Matthew Flinders, and made four voyages between December 1817 and April 1822. Amongst the 19-man crew were Allan Cunningham, John Septimus Roe and the aborigineBungaree. The first three trips were in the 76 tonne cutter, but the vessel was grounded in 1829. The Admiralty instructed King to discover whether there was any river 'likely to lead to an interior navigation into this great continent'. The Colonial Office had given instructions to collect information about topography, fauna, timber, minerals, climate, and the natives and the prospects of developing trade with them. From February to June 1818, the coast was surveyed as far as Van Diemen Gulf and there were many meetings with Aboriginals and Malay proas. In June the Mermaid visited Timor and then returned to Sydney, arriving on 29 July. Next December and January King surveyed Macquarie Harbour in Van Diemen's Land and sailed in May 1819 for Torres Strait. King took John Oxley as far as the Hastings River, and continued on to survey the coast between Cape Wessel and Admiralty Gulf. King returned to Sydney on 12 January 1820. King's fourth voyage was undertaken in the 154 tonne sloop HMS Bathurst. The ship headed north, through Torres Strait and to the north-west coast of the continent, including the Dampier Archipelago. Further survey of the west coast was made after a visit to Mauritius. Valuable contributions had been made to the exploration of Australia.
King had been promoted to commander in July 1821, and in April 1823 returned to England. He subsequently commanded the survey vessel HMS Adventure, and in company with HMS Beagle, spent five years surveying the complex convoluted coasts around the Strait of Magellan at the southern tip of South America. At the same time, King put together a unique collection of Patagonian objects from local tribes living in Tierra del Fuego, which was later donated to the British Museum in London. In addition to written records, King also lent his hand to drawing and watercolour painting for illustrations, some of which were later used to illustrate his accounts. The result was presented at a meeting of the Royal Geographical Society in 1831. His eldest son, also named Philip Gidley King, accompanied his father and continued as a midshipman on HMS Beagle on the continuing survey of Patagonia under Robert FitzRoy, in the company of noted scientist Charles Darwin. King owned a property at Dunheved in the western suburbs of Sydney where he entertained Charles Darwin on Darwin's last night in Sydney in January 1836.
Later life
King was appointed to the first New South Wales Legislative Council in 1829, however he was absent from the colony and did not take his seat and was replaced by John Campbell. When King returned to the colony in 1832 he pressed for his reappointment to the Council, however he was not re-appointed until February 1839. In April the same year King was appointed resident commissioner of the Australian Agricultural Company, a position he held for ten years. King offered to resign from the Council on accepting this appointment, but his resignation was not accepted until October. King was again appointed to the Legislative Council in 1850, and was elected as the member for the Counties of Gloucester and Macquarie in 1851 In 1855 King was promoted to Rear admiral on the retired list. King was a Fellow of the Royal Society. King died on 26 February 1856 at North Sydney.
Family
King married Harriet Lethbridge in 1817 prior to sailing to New South Wales. Harriet died at Ashfield, Sydney, on 19 December 1874. Together they had eight children including :
Philip Gidley stock manager of the Australian Agricultural Co & later a member of the Legislative Council.
Extracts from a letter addressed by Capt. Philip Parker King, R.N., F.R.S. and L.S., to N.A. Vigors, Esq., on the animals of the Straits of Magellan. Zoological Journal London 3:422-32. 1828.
Notes on birds collected by Capt. King in Chile.Proceedings of the Committee of Science and Correspondence of the Zoological Society of London, 1831: 29–30.1831
King, P.P. and Broderip, W.J. Description of Cirrhipedia, Conchifera and Mollusca, in a collection formed by the officers of H.M.S. Adventure and Beagle employed between the years 1826 and 1830 in surveying the southern coasts of South America, including the Straits of Magalhaens and the coast of Tierra del Fuego. The Zoological Journal, 5: 332–349.1832