Statistics for occurrence #1 of “Major-General McPherson” in chapter 4, page 46 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...ant's guns assumed their full importance. His army consisted of the Thirteenth Army Corps, Major-General McClernand; the Fifteenth Army Corps, Major-General Sherman, and the Seventeenth Army Corps, Major-General McPherson , with an aggregate of sixty-one thousand men and one hundred and fifty-eight guns. The superb assistance rendered to the infantry by the ably handled guns made it possible for Grant to defeat his a...
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