Statistics for occurrence #1 of “General Grant” in chapter 12, page 242 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.:

...after crossing, could entrench and protect the remainder of the army during the dangerous movement. One hour before noon, on June 15th, General H. W. Benham, of the Engineer Corps, was ordered by General Grant to prepare a pontoon bridge across the James River for the passage of the army. In anticipation of this order, pontoons had been sent from Fort Monroe, and work was started under direction of Major...
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