Statistics for occurrence #1 of “Charles river” in chapter 1 of Historic leaves, volume 5, April, 1906 - January, 1907:

...turdy elms brought from England before the Revolution. Lowell's fondness for these and, other trees near his home often crops out in his letters and poems. The group of willows on the bank of the Charles river near the Longfellow park are especially notable. Three of them are included in the River Front park. These willows, doubtless of an older date than the town of Cambridge itself, apart from thei...
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.