Statistics for occurrence #1 of “Assistant Surgeon, Wm. B. Mann” in chapter 20 of Admiral David D. Porter, The Naval History of the Civil War.:

...wick, H. B. Francis and M. Porter: Boatswain, Jos. Lewis: Gunner, Wm. Cope; Carpenter, John Green. Lieutenant-Commander, A. D. Harrell; Acting-Masters, John Lear, M. Rodgers and W. N. Wells; Assistant Surgeon, Wm. B. Mann ; Chief Engineer, J. F. Lambdin; Acting-Assistant Paymaster, W. H. Sells; Acting-Second-Assistant Engineer, L. W. Simmonds; Third-Assistant Engineers, H. D. Heiser, C. C. Davis and Guy Sampson; Acting...
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