Statistics for occurrence #1 of “Acting-Ensigns, S. J. Butler” in chapter 46 of Admiral David D. Porter, The Naval History of the Civil War.:

...n; Acting-Master, W. M. Stannard; Acting-Ensigns, G. W. Baker and James Sheppard. Acting-Master, H. Tibbetts; Acting-Assistant Surgeon, S. H. Weil; Acting-Assistant Paymaster, W. L. Darling; Acting-Ensigns, S. J. Butler and Wm. Harcourt; Acting-Master's Mates, J. H. Mallon and T. P. Jones; Engineers: Acting-First-Assistant, C. H. Harrington; Acting-Second-Assistant, J. W. Smyth; Third-Assistants, J. E. Fallon and L....
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