Statistics for occurrence #1 of “Portsmouth” in chapter 8 of Maj. Jed. Hotchkiss, Confederate Military History, a library of Confederate States Military History: Volume 3, Virginia:

...onroe and make the roads too hot to hold the blockading fleets. On the 25th, the governor asked the advisory council the very important question as to how steam vessels, entering the navy yard at Portsmouth or other ports, on State service, could be supplied with coal, when in want, that being then the case with one such vessel at Portsmouth. Fortunately for Virginia, she had, in the vicinity of Richm...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Portsmouth (New Hampshire, United States) 470 0 134 0 0 user votes
Portsmouth (United Kingdom) 107 0 13 0 0 user votes
Portsmouth (Dominica) 0 0 0 0 0 user votes
Portsmouth (Iowa, United States) 0 0 0 0 0 user votes
Portsmouth (Kentucky, United States) 0 0 0 0 0 user votes
Portsmouth (Virginia, 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.