Statistics for occurrence #1 of “Boston Harbor” in chapter 13 of Historic leaves, volume 2, April, 1903 - January, 1904:

...ember 27, 1692, he married Prudence, daughter of Jonathan Wade, Jr., of Medford, and they had four children, the births of three of whom were recorded in Charlestown. Mr. Swan died at the Castle in Boston Harbor , October 19, 1710, aged 41 years. ‘He did practise physick & chyrurgerye at Castle William upward of 7 years, at 12 pence per week for every 20 soldiers garrisoned there.’ His widow ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Boston Harbor (Massachusetts, United States) 627 4 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.