Statistics for occurrence #1 of “Mr. Justice Leverett” in chapter 12 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

...n being charged with putting in two votes at the second voting for a Representative, made oath that he put in but one vote for a Representative: said oaths were administered in the public meeting per Mr. Justice Leverett . In 1721, the small-pox prevailed more extensively and fatally than ever before in Boston and its vicinity.* A statement of results was made officially in the Boston News Letter : Boston, ...
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† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.