Statistics for occurrence #1 of “P. R. Maclaurin” in chapter 46 of Admiral David D. Porter, The Naval History of the Civil War.:

...s, T. H. Carton and James Eccles. Lieutenant-Commander, P. C. Johnson; Assistant-Surgeon, Ira Bragg; Acting-Assistant Paymaster, L. S. Bradley; Acting-Ensigns, M. W. McEntee, G. A. Faunce, P. R. Maclaurin and George Leonard; Acting Master's Mate, John Leeds; Engineers: Second-Assistant, T W. Rae; Third-Assistants, W. J. Reed, W. W. Heaton, John McIntyre and Thomas Tuttle. Lieutenant-Commander...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
P. R. Maclaurin 2 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.