Statistics for occurrence #1 of “Cumberland Sound” in chapter 8 of Admiral David D. Porter, The Naval History of the Civil War.:
...was the moral effect of the Port Royal victory, that there seemed to be a stampede all along the coast as soon as our naval vessels made their appearance.
The object of taking the vessels through Cumberland Sound was to turn the heavy works on Cumberland and Amelia Islands; but on receiving intelligence that the enemy had abandoned their works, Dupont detached the light gun-boats and light draft steamers from...
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