Statistics for occurrence #1 of “Worcester counties” in chapter 6, section c.6.29, page 52 of Medford Historical Society Papers, Volume 5.:

...ge with remarkable facility, exact method and system, thus enabling him to compass a vast amount of reading. He soon acquired a wide reputation and a large practice in Middlesex, Suffolk, Essex and Worcester counties , and in New Hampshire. Samuel Dana, Jr., another noted lawyer, and Mr. Bigelow became the leaders of the Middlesex bar. They were retained in the most important cases of the neighborhood, and were ...
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