Statistics for occurrence #1 of “M. H. Gerry” in chapter 46 of Admiral David D. Porter, The Naval History of the Civil War.:

... Acting-Ensigns, C. H. Hurd and James Igo; Acting-Assistant Surgeon, Henry Rockwood; Acting-Assistant Paymaster, George L. Mead; Acting-Master's Mate, Henry Myron; Engineers: Acting-Second-Assistant, M. H. Gerry ; Acting-Third-Assistants, Owen Raney and George C. Irelan. Note.--List not given in Navy Register for January, and is, therefore, incomplete. Commander, Alex. Gibson; Assistant-Surgeon, ...
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