Statistics for occurrence #1 of “Washington, D. C.” in chapter 137, page 518 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 8.:

... heavy guns. The Ordnance Bureau may be able to account for them. I am, sir, very respectfully, your obedient servant, David D. Porter, Rear-Admiral. Hon. Gideon Welles, Secretary of the Navy, Washington, D. C. List of Guns captured at Fort De Russy water-battery.--One thirty-two pounder, thirty-three hundred weight, F. P. F., No. 227, navy, in barbette, J. S. C. Proven 1847. One thirty-one pounder...
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