Statistics for occurrence #1 of “upper Mississippi” in chapter 3 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 10: The Armies and the Leaders.:

... was thus enabled to live at Arlington, but, while in no sense of the term a society man, he also saw something of life at the capital. Three years later he was sent West to superintend work on the upper Mississippi . His plans were approved and well carried Through the courtesy of General G. W. C. Lee—who furnished information of much value concerning several portraits in this chapter—ther...
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