Statistics for occurrence #1 of “Boatswain, John A. Selmer” in chapter 41 of Admiral David D. Porter, The Naval History of the Civil War.:

...tes, H. H. Collamore, J. S. Young and John Dow; Engineers: Chief, Edward Fithian; Assistants, T. J. McK. Daniels, H. S. Leonard, H. D. Sellman, Webster Lane, Henry Blye, E. P. Rank and J. C. Cross; Boatswain, John A. Selmer ; Gunner, John Caulk; Carpenter, J. H. Owens. Captain. B. F. Sands; Lieutenant-Commander, Chas. S. Norton; Surgeon, Philip S. Wales; Paymaster, Clifton Hellen; Acting-Masters, W. E. Dennison ...
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