Statistics for occurrence #1 of “W. K. Purse” in chapter 20 of Admiral David D. Porter, The Naval History of the Civil War.:

...nder, John Guest; Lieutenant, Chester Hatfield; Acting-Masters, T. D. Dabb and D. P. Heath; Assistant Surgeon, W. M. Leavitt; Acting-Assistant Paymaster, Richard Beardsley; Second-Assistant Engineer, W. K. Purse ; Third-Assistant Engineers, J. A. Scott, C. H. Greenleaf and D. B. Egbert; Acting-Masters' Mates, W. M. Tomlinson and John Utter. Captain, Henry W. Morris; Lieutenants, F. A. Roe, Jas. Still...
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