Statistics for occurrence #1 of “Charles River” in chapter 17 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...states may be considered as part of said precinct. The subsequent proceedings are related by Dr. Holmes in Coll. Mass. Hist. Soc., VII., 36, 37: In 1780, the church members on the south side of Charles River in Cambridge presented a petition to the church, signifying their desire to be dismissed and incorporated into a distinct church, for enjoying the special ordinances of the gospel more conveniently b...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Charles River (Maine, United States) 0 0 0 0 0 user votes
Charles River (Massachusetts, 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.