Statistics for occurrence #1 of “Norwich” in entry mason-john of Harper's Encyclopedia of United States History:

...ch, Conn., in 1672. He was a magistrate from 1642 until 1668, and deputygovernor from 1660 to 1670. He went to Saybrook after the Pequod War at the request of the settlers, and in 1659 removed to Norwich .
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Norwich (Connecticut, United States) 265 64 73 28 0 user votes
Norwich (United Kingdom) 41 0 3 0 0 user votes
Norwich (Canada) 2 0 0 0 0 user votes
Norwich (Georgia, United States) 0 0 0 0 0 user votes
Norwich (Iowa, United States) 0 0 0 0 0 user votes
Norwich (Kansas, United States) 0 0 0 0 0 user votes
Norwich (Massachusetts, United States) 0 0 0 0 0 user votes
Norwich (North Dakota, United States) 0 0 0 0 0 user votes
Norwich (Ohio, United States) 0 0 0 0 0 user votes
Norwich (Pennsylvania, 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.