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Howard Stansbury, Spencer Fullerton Baird, Charles Girard, Samuel Stehman Haldeman, John Torrey et James Hall, Exploration and survey of the valley of the Great Salt Lake of Utah, including a reconnoissance of a new route through the Rocky Mountains, Lippincott, Grambo & Co, (lire en ligne), 86
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« The Madison Journal ... », Janesville Daily Gazette, , p. 6 (lire en ligne, consulté le )