Statistics for occurrence #1 of “Berkshire” in chapter 3 of William Schouler, A history of Massachusetts in the Civil War: Volume 2:

...e centre of the county, east and west, connecting it with Boston and the Hudson River. There are several other railroads in the county, which centre at Pittsfield. There are thirty-one towns in Berkshire , but no city. The entire population in 1860 was 55,120, and in 1865 it was 56,960, an increase in five years of only 1,846. The valuation in 1860 was $24,186,962, and in 1865 it was $27,937,444, ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Berkshire (United Kingdom) 73 8 5 0 0 user votes
Berkshire (New York, United States) 1 0 1 0 0 user votes
Berkshire (Connecticut, United States) 0 0 0 0 0 user votes
Berkshire (New York, United States) 0 0 0 0 0 user votes
Berkshire (Ohio, United States) 0 0 0 0 0 user votes
Berkshire (Vermont, 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.