Statistics for occurrence #1 of “Hampton Roads” in chapter 12 of Admiral David D. Porter, The Naval History of the Civil War.:

...hen the Merrimac retreated to Sewell's Point, and we went to the Minnesota and lay by her. This is rather a meagre report of so important a transaction. but no one else in the squadron at Hampton Roads , so far as known, says anything about the matter except Capt. Van Brunt, who writes: For some time after this the Confederates concentrated their whole battery upon the turret and pilot-house of the ...
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Hampton Roads (Virginia, United States) 2,301 158 35 0 0 user votes

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