Statistics for occurrence #1 of “H. B. Sprague” in chapter 58 of Admiral David D. Porter, The Naval History of the Civil War.:

...enter, Noah Dean. Lieutenant-Commander, John G. Mitchell; Acting-Volunteer-Lieutenant, J. W. Atkinson; Acting-Ensigns, John McCleane and Wm. Hammett, Jr.; Acting Master's Mates, J. R. Hugle, H. B. Sprague , W. H. Smith and W. W. Rumsey; Acting-Assistant Surgeon, H. A. Bodman; Acting-Assistant Paymaster, T. B. Reed; Engineers: Acting-First-Assistant, Samuel Tubbs; Acting-Second-Assistant, F. G. Seavey; ...
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