Statistics for occurrence #1 of “General Porter” in chapter 4, page 35 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.:

...tenuated line, he could not get them until he finally borrowed one battery from Franklin. After the battle ended (September 17, 1862) and the Confederates withdrew to the south side of the Potomac, General Porter resolved to capture some of the Confederate guns commanding the fords. One of the five pieces taken in this exploit on the night of September 19th was a gun which had been captured by the Confedera...
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