Statistics for occurrence #1 of “Minnesota” in chapter 18 of D. H. Hill, Jr., Confederate Military History, a library of Confederate States Military History: Volume 4, North Carolina:

...here were only 3,600 shot and shell exclusive of grape and shrapnel in the works. . . . Except when special orders were given the guns were only fired every half hour. In the two days, the frigates Minnesota and Colorado fired 3,551 shot and shell, almost as many as were in all the batteries of Fort Fisher. With this second experience, General Butler retired, and the fort had a respite until January....
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Minnesota (Minnesota, United States) 1,710 2 0 0 0 user votes
Minnesota (California, United States) 0 0 0 0 0 user votes
Minnesota (Georgia, United States) 0 0 0 0 0 user votes
Minnesota (Minnesota, United States) 0 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.