Statistics for occurrence #1 of “George R. Mann” in chapter 36 of Admiral David D. Porter, The Naval History of the Civil War.:

...nd Daniel Laken; Engineers: Acting-Second-Assistant, G. W. Richards; Acting-Third-Assistants, J. L. Bowers and F. A. Whitfield. Lieutenant-Commander, Wm. P. McCann; Acting-Assistant Surgeon, George R. Mann ; Acting-Assistant Paymaster, Henry Cushing; Acting-Master, Richard Pasquell; Acting-Master's Mates, W. L. Weaver, C. H. Weaver, R. P. Boss, John Maddock and T. C. Barton; Engineers: Acting-Second-Ass...
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