Statistics for occurrence #1 of “Washington, D. C.” in chapter 19 of Admiral David D. Porter, The Naval History of the Civil War.:
...e impediments between this and Memphis.
I am, very respectfully, your obedient servant, D. G. Farragut, Flag-officer, Western Gulf Blockading Squadron. Hon. Gideon Welles, Secretary of the Navy, Washington, D. C.
United States Flag-Ship Hartford, at anchor off New Orleans, May 6, 1862.
Sir — I have the honor herewith to forward my report, in detail, of the battle of New Orleans.
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