Robert Taft, "Pictorial Record of the Old West: VI. Heinrich Balduin Möllhousen," p. 225.|
C. W. McCampbell, "W. E. Campbell, Pioneer Kansas Livestockman," p. 245.
William Clark's Diary, May, 1826-February, 1831: Part Three, 1829, p. 274.
|From the cover: The steamboat Explorer used in the exploration of the lower Colorado River, 1857-1858, by the Lt. Joseph C. Ives expedition. From a sketch by H. B. Möllhausen reproduced as a lithograph in the official Ives report.|