Statistics for occurrence #1 of “Boston Harbor” in chapter 31 of Thomas Wentworth Higginson, Harvard Memorial Biographies:

..., Massachusetts, in March, 1840. Nothing is known of his parentage or childhood, but on the 5th of January, 1850, at the age of ten years, he was admitted into the Farm School for Indigent Boys, in Boston Harbor . He was then an orphan, and was admitted on application of an elder brother. He remained there for three years, during which time he sustained a good character, and was one of the best scholars...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Boston Harbor (Massachusetts, United States) 627 10 1 0 0 user votes
Boston Harbor (New Hampshire, United States) 0 0 0 0 0 user votes
Boston Harbor (Washington, United States) 0 0 0 0 0 user votes
Boston Harbor (Washington, 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.