Lt. William A. Slacum, a Navy purser, was sent by the President, through the Department of State, as a special investigator to the Oregon Territory to investigate the Britain operations and to take stock of the tribes and the resources in the territory. Slacum was alone, except for one servant, and was not sent with supplies or any obvious purpose for going to Oregon. In sending Slacum to Oregon, the President, Andrew Jackson, was reacting to the obvious dominance of the British in the Oregon Territory despite the Treaty of 1818 which provides for a joint occupation of the territory … Continue reading Lt. William A. Slacum, United States Spy in the Oregon Territory, and ; Chief Slacum of the Clowewalla