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

...stant Surgeon, J. K. Walsh; Acting-Assistant Paymaster, J. S. Mallary; Acting-Master, D. E. Taylor; Acting-Ensigns, H. G. Marcy, Wm. Young, G. W. Williams and E. D. Pettingill; Acting-Master's Mates, Isaac Hallock and H. C. Robertson; Engineers: Acting-First-Assistant, B. F. Beckett; Acting-Second-Assistant, F. E. Porter; Acting-Third-Assistants, D. J. Lanahan, J. H. Hopkins, Wm. Ellis, W. A. Steinrook and Wm....
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Isaac Hallock 4 2 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.