Statistics for occurrence #1 of “Portsmouth” in entry navy-of-the-united-states of Harper's Encyclopedia of United States History:

...aval war college, and torpedo station); New York, N. Y. (navy-yard); Norfolk, Va (navy-yard); Pensacola, Fla. (navyyard); Philadelphia, Pa. (navy-yard); Cavite, Philippine Islands; Port Royal, S. C.; Portsmouth , N. H. (navy-yard); Puget Sound, Wash. (navy-yard); San Francisco, Cal. (training station); San Juan, Porto Rico; Tutuila, Samoa; Washington, D. C. (navy-yard); and Yokohama, Japan (naval hospital)...
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.