Statistics for occurrence #1 of “Westchester” in entry french-refugees-in-america of Harper's Encyclopedia of United States History:

...harleston. These Huguenots were a valuable acquisition to the colonies. In the South they planted vineyards and made wine. A large number of them settled in the province of New York, chiefly in Westchester and Ulster counties, and in the city of New York.
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Westchester (New York, United States) 133 53 23 13 0 user votes
Westchester (California, United States) 0 0 0 0 0 user votes
Westchester (Connecticut, United States) 0 0 0 0 0 user votes
Westchester (Florida, United States) 0 0 0 0 0 user votes
Westchester (Georgia, United States) 0 0 0 0 0 user votes
Westchester (Illinois, United States) 0 0 0 0 0 user votes
Westchester (Indiana, United States) 0 0 0 0 0 user votes
Westchester (Louisiana, United States) 0 0 0 0 0 user votes
Westchester (Maryland, United States) 0 0 0 0 0 user votes
† Westchester (New York, United States) 0 0 0 0 0 user votes
Westchester (North Carolina, United States) 0 0 0 0 0 user votes
Westchester (North Carolina, United States) 0 0 0 0 0 user votes
Westchester (North Carolina, United States) 0 0 0 0 0 user votes
Westchester (West Virginia, 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.