Statistics for occurrence #1 of “Billerica” in chapter 1 of Medford Historical Society Papers, Volume 7.:

...were the difficulties with which this eighteenth century enterprise had to contend in the early years of its nineteenth century history. Nor were these all. With the exception of the guard locks at Billerica and Chelmsford, which, of hammered granite, were equalled by nothing then in our country, the various locks and aqueducts were constructed of wood, and necessarily perishable. The aqueduct at Shaws...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Billerica (Massachusetts, United States) 452 14 6 0 0 user votes
Billerica (Massachusetts, United States) 4 2 0 0 0 user votes

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