Statistics for occurrence #1 of “Middlesex County” in chapter 240 of Rebellion Record: a Diary of American Events: Poetry and Incidents., Volume 1.:

...1775, just 86 years previous. This fact was remarkable, but not as much as another in the same connection. It appears from a Boston letter in the New York World, that that Regiment was all from Middlesex County , which embraces the battle-fields of Lexington, Concord, and Bunker Hill. One or two of the companies are entirely composed of the lineal descendants of the patriots who were in the Concord fight. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Middlesex County (Virginia, United States) 131 2 3 0 0 user votes
Middlesex County (Massachusetts, United States) 213 0 1 0 0 user votes
Middlesex County (Connecticut, United States) 0 0 0 0 0 user votes
Middlesex County (New Jersey, 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.