Statistics for occurrence #1 of “Mystic river” in chapter 8 of Medford Historical Society Papers, Volume 23.:

... annexation of a strip of Malden territory, and, within our memory, of another farther on from Everett, which was also formerly of Malden, both of which form the present Wellington district. At the Mystic river end of that old boundary, be it remembered, was the brick landing place in 1803. The other end must have been where, on Malden line, the marsh and upland joined. Just now a glance at Walling's ma...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Mystic River (Massachusetts, United States) 226 0 24 0 0 user votes
Mystic River (Connecticut, United States) 34 2 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.