Statistics for occurrence #1 of “Portsmouth” in year 1864, month April of Rebellion Record: a Diary of American Events, Diary from December 17, 1860 - April 30, 1864:

...ore than two hours, before we were ordered to go aboard the transport, and that night moved down to Smithfield; and the next forenoon the other part of the expedition came out, and we all returned to Portsmouth . A Lieutenant, belonging to frigate Minnesota who accompanied the expedition to Smithfield, was killed, and also an officer of the Ninth New Jersey killed, and one private wounded. I believe thos...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Portsmouth (New Hampshire, United States) 470 2 134 2 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.