Statistics for occurrence #1 of “Mystic river” in chapter 1 of Medford Historical Society Papers, Volume 30.:

...w High street, beginning with the weir bridge and running easterly along High street almost to the present line of the Boston & Maine railroad. From that point the boundary ran southerly to the Mystic river , and then westerly and northerly up the river to the bridge. This part of the property, it may be noted, in anticipation, remained in the Brooks family until about 1779, when it was sold. In 1843...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Mystic River (Massachusetts, United States) 226 8 24 0 0 user votes
Mystic River (Connecticut, United States) 34 0 0 0 0 user votes
Mystic River (Massachusetts, United States) 18 2 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.