Statistics for occurrence #1 of “Mr. Kendall” in chapter 20 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...d to keep the Grammar School in this town for three months, to commence on Thursday next, at the rate of thirty pounds per annum, and his board to be found for him, it being upon the same terms that Mr. Kendall kept it. Fifty years later, it appears by the Report of the Auditing Committee, April 19, 1833, that the salary of the schoolmasters (of whom there were then five) was five hundred and fifty dollar...
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