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

...arly age, trained them to do such efficient service in battle. Acting-Masters W. H. West, Rockwell, Gregory and Palmer, stationed at the various divisions, evinced patriotic zeal and courage. Mr. Coghlan , the boatswain, not only did his duty in the sixth division, but also skillfully served the rifled boat-guns, with which he did good service. The gunner, Mr. Stewart, in the magazine, and the car...
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