Statistics for occurrence #1 of “Portsmouth” in entry portsmouth of Harper's Encyclopedia of United States History:

...e Piscataqua River, by Mason, who tried to be lord of the manor ; but his people were too independent to allow special privileges to any one. An Episcopalian named Gibson was the first minister at Portsmouth , for whom a chapel was built in 1638. He was dismissed by the General Court of Massachusetts, which claimed jurisdiction over that region, and a Puritan minister—James Parker—was put in...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Portsmouth (New Hampshire, United States) 470 225 134 39 0 user votes
Portsmouth (United Kingdom) 107 15 13 5 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.