George Johnston was a key figure in putting down what rebellion by convicts against colonial authority in the Castle Hill area of the British colony of New South Wales?
George Johnston (British Marines officer) Lieutenant-Colonel George Johnston (19 March 1764 – 5 January 1823) was briefly Lieutenant-Governor of New South Wales, Australia after leading the rebellion later known as the Rum Rebellion. After serving as a young marine officer in the American Revolutionary War, Johnston served in the East Indies, fighting against the French, before volunteering to accompany the First Fleet to New South Wales. After serving as adjutant to Governor Arthur Phillip, Johnston served in the New South Wales Corps and he was later a key figure in putting down the Castle Hill convict rebellion in 1804 and then the Rum Rebellion in 1808, the latter of which led to his court martial and subsequent cashiering from military service. In his later life, he returned to New South Wales as a private citizen, raising a family in the colony and establishing a successful farm around Annandale in Sydney.
Georges Head Battery The Georges Head Battery is a former military fortification located on the Georges Head in the suburb of Mosman in Sydney, New South Wales, Australia. The site consists of the original battery and barracks, designed by Colonial Architect James Barnet, located at the end of Suakin Drive, Georges Heights, two later batteries located adjacent to the corner of Middle Head Road and Best Avenue, Georges Heights, and the Beehive (or Lower) Casemate adjacent to the Armoured (or Upper) Casemate in Chowder Bay Road. The Georges Head Battery is one of three forts in the area that were built for the purpose of defending the outer harbour. The other two forts are located at Middle Head and Bradleys Head, Mosman. The fort became a command post in the 1890s for the coordination of all of Sydney's harbour defences. It was decommissioned in 2002 and part of the land is managed by the Sydney Harbour Federation Trust, with other parts managed by the NSW National Parks & Wildlife Service as part of the Sydney Harbour National Park.