Statistics for occurrence #1 of “Commodore Ingraham” in chapter 4 of Alfred Roman, The military operations of General Beauregard in the war between the states, 1861 to 1865:

...t which the guns of Sumter, and of the works around the harbor, would have been almost powerless. It was with a view to guard against this danger that the following communication was addressed to Commodore Ingraham : Charleston, S. C., March 1st, 1863. Sir,—The movements of the enemy in Port Royal Harbor yesterday looked suspicious, and have the appearance of an early movement of some sort. T...
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