 Jamison may have particularly drawn Bligh ire as he was an Irishmen; Bligh was known for his anti-Irish sentiments.In 1808 Jamison, Macarthur, Blaxcell and other disaffected colonists joined forces with the New South Wales Corps to arrest and expel Bligh from Government House in a military "coup d'état" that has now become known colloquially in Australia as the Rum Rebellion.Following the "coup", Jamison served as the Naval Officer (Collector of Customs and Excise) in the colony's temporary, rebel government.