National Library of Australia. It was a plan for sub-division drawn up for the Estate of Robert Campbell (1769–1846), the owner of the land. The map shows settlement in the area of Jeffrey Street and Milsons Point as well as what is now known as Kirribilli House and Admiralty House at Kirribilli Point. The other parts of the map have streets and property boundaries shown for the subdivision but are otherwise largely blank. The map shows the extent of the 120 acres (48ha), owned by the Estate of Robert Campbell, which James Milson was leasing from Robert Campbell in the 1820s, and the subsequently smaller area that Milson was leasing in the 1840s where just his orchard, dairy and a worker's cottage were situated. The worker's cottage had been his second home in the area, "Brisbane Cottage". It is believed to near the site of this cottage that Milson had built his first home in the area that was destroyed in the devastating bushfires of November 1826. Adjoining the 120 acres (48ha) owned by the Estate of Robert Campbell the map also shows the location further up the point of the 50-acre (20 ha) grant of land made by Governor Brisbane to Milson in August 1824. When compared with modern maps of the area, the 1840s map shows that the boundary between Campbell's 120 acres and Milson's 50 acres went across the peninsula in a straight line, and that modern day Willoughby Street forms part of that straight line. It was on this adjoining 50 acres (20ha) owned by Milson that Milson grazed his dairy cattle. It was also on this adjoining 50 acres (20ha) owned by Milson that Milson had resided since 1831 when he built "Brisbane House" as the family home. The house was named after Sir Thomas Brisbane, Governor of NSW from 1821 to 1825. It was a two storey stone house situated approximately at the block enclosed by today's Arthur, Middlemiss and Lavender Streets, Lavender Bay. The home faced Lavender Bay, then commonly called Hulk Bay, after the convict hulks moored nearby. In addition Milson later built on this 50 acres (20ha) a large bungalow-style sandstone home situated at Greenway Drive, Milsons Point near where the Greenway Housing Commission Flats are today. This home was called "Grantham" after James Milson's place of birth. Both these homes were demolished in 1925-26 to make way for the building