Statistics for occurrence #1 of “McClernand” in chapter 28 of Admiral David D. Porter, The Naval History of the Civil War.:

...and at Bruensburg, eight or ten miles below Grand Gulf, could have disembarked at the latter point and marched to the rear of Vicksburg by favorable roads. Instead of carrying out his instructions, McClernand advanced only to Perkins' Landing, where he pitched his tents (although he had been directed to leave these behind on account of the difficulties of transportation), and called upon General McPherson...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
McClernand 941 84 155 26 0 user votes
John A. McClernand 2,049 0 51 0 0 user votes
J. A. McClernand 348 0 6 0 0 user votes
Jonathan A. McClernand 108 0 0 0 0 user votes
John Alexander McClernand 40 0 6 0 0 user votes
Generals McClernand 20 0 0 0 0 user votes
Geas McClernand 6 0 0 0 0 user votes
Gen McClernand 4 0 0 0 0 user votes
John McClernand 2 0 2 0 0 user votes
Gen John A. McClernand 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.