Statistics for occurrence #1 of “Forts Beauregard” in chapter 34 of Admiral David D. Porter, The Naval History of the Civil War.:

... Flag-Ship Wabash, Off Hilton Head, Port Royal Harbor, Nov. 8, 1861. Sir — I have the honor to inform you that yester day I attacked the enemy's batteries on Bay Point and Hilton Head ( Forts Beauregard and Walker), and succeeded in silencing them after an engagement of four hours duration, and driving away the squadron of rebel steamers under Commodore Tatnall. The reconnoissance of yesterday mad...
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