Statistics for occurrence #1 of “Fort Sumter” in chapter 50 of Admiral David D. Porter, The Naval History of the Civil War.:

...the sea-shore of Morris Island, and in the little stream on its inner border. A detachment of seamen and marines were also engaged, under Commander F. A. Parker. in the attack on the batteries at Fort Sumter , working four Navy rifled cannon that had been landed for the purpose. Besides the principal attacks made on Wagner, there were few days from the first attack on Morris Island (July 10) to its ev...
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