old Hazelwood estate, owned by the Francis Clark family. They had acquired a residence and 50-acre estate named "Grove Cottage" from Thomas Burr in 1853 and renamed it "Hazelwood", which reflects the name of the school in Birmingham founded by Rowland Hill (postal reformer), a brother of Caroline Clark. The Burnside Council sought to acquire the park from the State Government after finding notes from a government meeting in 1944 that were to see the park sold to a private owner. The Mayor of Burnside at the time, George Bolton, had a grand vision for what the park should become; notably in the construction of an Olympic-sized swimming pool.(Bolton was Mayor from 1952 to 1954 and then from 1962 to 1967) After years of effort, the Burnside Council eventually acquired the park in May 1963 after negotiations with the Premier, Sir Thomas Playford. As part of the acquisition, the Burnside Council was to retain the name 'Hazelwood' and was to maintain the park at a level satisfactory to the State Government. The deed was transferred on 2 January 1964 for the 2.2 ha of Section 298 that is Hazelwood Park. In 1966, after much political wrangling, a 3-pool swimming center opened at Hazelwood Park. It was named after Mayor George Bolton who had been the leading voice in advocating its construction. The George Bolton Swimming Center remains open to this day, and saw renovations in 1996 which added further facilities.. The park is a State Heritage Item. The SA State Heritage Register lists its significances as follows: State Heritage Significance: "Hazelwood Park is a portion of the original Hazelwood Park Estate which was owned by the Clark family 1853–1914. During their ownership they allowed the general public to use the area for recreational purposes and it became known as Clark's Paddock. That use was formalized when the family offered to sell it to the South Australian Government provided that it remained a park and the Government purchased it in 1914. In 1915 it was dedicated as a National Pleasure Resort under the National Pleasure Resorts Act 1914, one of the first four places to be dedicated. The Park is significant for being an early National Pleasure Resort and for its association with the Clarks. The Clark family were notable for their involvement in public life. Howard was a leading figure in the Adelaide Philosophical Society and in the Institute movement.