Statistics for occurrence #1 of “Acting-Master Gibson” in chapter 45 of Admiral David D. Porter, The Naval History of the Civil War.:

... the naval force in the Yazoo River by Lieutenant-Commander Owen. After firing the howitzer several times, it had a shell jammed in the bore which could not be removed. Mr. McElroy then ordered Acting-Master Gibson . of the Marmora, to dismount one of his rifled howitzers, mount it on a field carriage, and send it on shore with a crew to work it; but before he could get the gun to the redoubt the enemy had com...
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