Statistics for occurrence #1 of “Mystic river” in chapter 12 of Historic leaves, volume 4, April, 1905 - January, 1906:

...s fire was the third of March. The district commences in Cambridge road, sweeps around the Cambridge line, runs across Milk row by Isaac Tufts' to Winter Hill, by the house of Joseph Adams, Esq., to Mystic river , and down to the cluster of houses near the entrance of 3 Pole lane, and over to the place of beginning. It contains sixty-one families, and 106 children from four to fourteen, about one-third of w...
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 0 0 0 0 user votes
Mystic River (Massachusetts, United States) 18 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.