Report of the expedition to the river Colorado made in the U.S. Schooner "Invincible", Capt. A.H. Wilcox, from November [1850] to March 1851 : by order of Maj. Genl. P.F. Smith, comdg. Pacific Division, 1851 Mar. 31.

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Report of the expedition to the river Colorado made in the U.S. Schooner "Invincible", Capt. A.H. Wilcox, from November [1850] to March 1851 : by order of Maj. Genl. P.F. Smith, comdg. Pacific Division, 1851 Mar. 31.

http://www.worldcat.org/oclc/371836355

A copy of the original manuscript report, in the author's own hand, of Lt. George H. Derby's exploration of the lower Colorado River, done from November 1850 to March 1851. The expedition was prompted by the United States' acquisition of the area at the conclusion of the Mexican War. The text is substantially the same as in the printed version of the report, published in 1852 as Senate Executive Document no. 81, though there are a few minor changes. Manuscript includes thirteen illustrations, only four of which appeared in the published version. Includes Derby's map of the mouth of the Colorado River.

52 p.

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SNAC Resource ID: 7390899

UC Berkeley Libraries

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Derby, George Horatio, 1823-1861

http://n2t.net/ark:/99166/w6th92gz (person)

George Horatio Derby was born on April 3, 1823, in Dedham, Massachusetts. He graduated from West Point in 1846 and served as a Lieutenant in the U.S. Army Topographic Corps. He mapped the San Diego River in 1853 before moving to San Francisco in 1854 to marry Mary A. Coons. While in San Francisco, Derby began writing satiric articles for the San Francisco Herald and California Pioneer Magazine, for which he used the pseudonyms "John P. Squibob" and "John Phoenix." Derby died of a possible brain ...

United States. Army. Pacific Division (1848-1853)

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