Statistics for occurrence #1 of “John S. Harper” in chapter 36 of Admiral David D. Porter, The Naval History of the Civil War.:

...nd Esubius Minne. Acting-Volunteer-Lieutenant, John Macdearmid; Acting-Master's Mates, M. Tallmadge Ryan and H. A. Hudson; Engineers: Acting-Second-Assistant, Hugh Rafferty; Third-Assistant, John S. Harper . Acting-Volunteer-Lieutenant, W. W. Kennison; Acting-Master's Mates, Thos. Moore, C. H. Packer and D. M. Gaskins. Acting-Master, G. W. Graves; Acting-Master's Mates, A. H. Hicks and...
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John S. Harper 28 4 0 0 0 user votes

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