Statistics for occurrence #1 of “Tatnall” in chapter 12 of Admiral David D. Porter, The Naval History of the Civil War.:

...emy during the Mexican War, and knew him as well as one man can know another. Tatnall was ready for any desperate service, but he lacked Catesby Jones' coolness and judgment. Up to the time Tatnall took command the iron-clad had been in dock undergoing repairs, and it would seem from this circumstance that she had been more roughly handled by the Monitor than the Confederates chose to admit. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Josiah Tatnall 244 44 20 2 0 user votes
Tatnall 150 0 90 0 0 user votes
John R. F. Tatnall 3 0 3 0 0 user votes
J. Tatnall 2 0 0 0 0 user votes
Commodore Tatnall 1 0 1 0 0 user votes
J. R. F. Tatnall 1 0 1 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.