Description: Map showing the dollar value of dairy products in 1839 by state. "The value of dairy products is the only measure of dairying available for 1839. The most important centers of production were in the vicinity of Boston, western Connecticut, vicinity of New York City, in the Mohawk Valley of central New York, and in the vicinity of Philadelphia on both sides of the Delaware River."—United States Department of Agriculture Yearbook 1922, 1923
Source: , United States Department of Agriculture Yearbook 1922 (Washington D.C., Washington D.C.: Government Printing Office, 1923) 305
Map Credit: The Private Collection of Roy Winkelman |
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