of Campbells W. D. Campbell never saw the homestead fully completed, dying in 1827 aged 57. He left the estate to his nephews Murdoch and John Campbell. In 1828 the Census recorded (his nephew) Mr Murdoch Campbell and Mrs A. Campbell living at Harrington Park with convict servants Sarah Maker, housemaid and William Bailey, cook. The farm had of cleared land with in cultivation and 150 cattle and nine horses. The convict labourers working the farm were Patrick Murphy, Samuel Lester, Lawrence Lyons, Abraham Malabar and Joseph Parker. In 1830 William Riley described the Campbell's' altered residence as "an elegant mansion on an eminence and about cleared and in cultivation". The first subdivision of Harrington Park occurred on 29 August 1829 when Murdoch Campbell sold of enclosed land from the northern part of the estate to his cousin John Douglas Campbell for £600. This farm was named Aberfoil. Two years later, he leased, and later sold, a smaller farming allotment of north of the Cobbitty Road to George Graham, a farmer from Liverpool. Murdoch Campbell was murdered at Harrington Park by an escaped convict or bushranger in 1833. After his death, his share in the Harrington Park estate passed to his eldest brother, William Douglas Campbell the younger, a resident of Scotland, and the property reportedly declined from that time. The incumbent released very small allotments in the form of 99-year leases – two just over to James Greenfield and John Graham, and two of about to Andrew Keaton and another unnamed recipient. In 1838 William Douglas Campbell the younger died without a will and his share of the estate passed to his eldest son, Alexander, an Edinburgh merchant, who issued a power of attorney for the property to his brother William Douglas Campbell III of Arbroath, Scotland, on the understanding that he was about to embark for New South Wales. However, later title details show that W. D. Campbell III was a writer who never left Scotland. John Douglas Campbell who had purchased the farm named Aberfoil in 1829 sold it to Henry William Johnson in 1842 for £1,600. He made the sale in the worst year of the 1840s depression, so it seems likely that he had financial problems. His action permanently removed this farm from the Harrington Park estate. It later became Oran Park. Outraged, Alexander Campbell, still residing in Scotland, opened legal proceedings against John Campbell