Statistics for occurrence #1 of “Confederate States” in chapter 1.1 of Southern Historical Society Papers, Volume 19.:

...furnished by me on the 23rd day of June, 1861, to the Honorable S. R. Mallory, Secretary of the Navy, to William P. Williamson, Chief-Engineer Confederate States Navy, and John L. Porter, Constructor Confederate States Navy, the two latter having been directed by the Honorable Secretary of the Navy, in conjunction with myself, to devise an iron-clad vessel. And this plan was applied to the Merrimac in preference ...
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