Prosser, William Farrand. A History of the Puget Sound Country: Its Resources, Its commerce and Its People: with Some Reference to Discoveries and Explorations in North America from the Time of Christopher Columbus Down to that of George Vancouver in 1792, Lewis Publishing Company, 1903. [1]
Hunt, Herbet & Floyd C. Kaylor. Washington, West of the Cascades: Historical and Descriptive; the explorers, the Indians, the Pioneers, the Modern, Volume 3. S.J. Clarke publishing company, 1917 [2]