The European population in the Canberra area continued to grow slowly throughout the 19th century. Among them was the Campbell family of "Duntroon"; their imposing stone house is now the officers' mess of the Royal Military College, Duntroon. The Campbells sponsored settlement by other farmer families to work their land, such as the Southwells of "Weetangera". Other notable early settlers included the inter-related Murray and Gibbes families, who owned the Yarralumla estate —now the site of the official residence of the Governor-General of Australia — from the 1830s through to 1881. Associated with the Yarralumla Estate and Government House is the adjoining Yarralumla Woolshed.