Statistics for occurrence #1 of “Mr. Jonas Clarke” in chapter 26 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...rds; Mary, b. 22 Feb. 1671-2, d. 29 Feb. 1671-2; Jonathan, named in his father's will as the youngest son, 1698, d. 9 May 1700; Samuel the f. was in early life a mariner, and is mentioned as follows: Mr. Jonas Clarke and Mr. Samuell Andrews, both well skilled in the mathematics, having had the command of ships upon several voyages, being appointed to take an observation at the northerly bounds of our Patent upon ...
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