||"One of the most extensive collections of relevant papers on the subject. It includes the report of the American commissioner for the Northwest Boundary Commission, Archibald Campbell. Also appeared under title: Message of the President of the United States, communicating ... information in relation to the occupation of the Island of San Juan, in Puget Sound. ([United States] 40th Cong., 2d sess. Senate. Ex. doc. no. 29)." -- Lowther, B. J., & Laing, M. (1968). A bibliography of British Columbia: Laying the foundations, 1849-1899. Victoria, BC: University of Victoria, p. 37.