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

...der, John De Camp; Lieutenants, D. B. Harmony and Fred. V. McNair, Acting-Ensign, C. F. Willard Midshipman, John McFarland; Surgeon, Benj. Vreeland; Paymaster, R. H. Clark; First-Assistant Engineers, John H. Long and B. C. Bampton; Second-Assistant Engineers, E. S. Boynton and F. K. Haine; Third-Assistant Engineer, J. H. Hunt; Gunner, J. L. Staples; Carpenter, John A. Dixon. Lieutenant-Commander, C. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
John H. Long 4 4 0 0 0 user votes
John H. Longnecker 4 0 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.