Statistics for occurrence #1 of “Commander David D. Porter” in chapter 20 of John G. Nicolay, A Short Life of Abraham Lincoln, condensed from Nicolay and Hayes' Abraham Lincoln: A History:

...s with which he superintended the organization of his fleet. By the middle of April he was in the lower Mississippi with seventeen men-of-war and one hundred and seventy-seven guns. With him were Commander David D. Porter , in charge of a mortar flotilla of nineteen schooners and six armed steamships, and General Benjamin F. Butler, at the head of an army contingent of six thousand men, soon to be followed by considera...
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