Statistics for occurrence #1 of “Charlton, Mass.” in entry morton-william-thomas-green of Harper's Encyclopedia of United States History:

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Dentist; born in Charlton, Mass. , Aug. 9, 1819. After studying dentistry in Baltimore in 1840, he settled in Boston (1842), where he successfully manufactured artificial teeth. While attending lectures at a medical college, he c...
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Charlton, Mass. (Massachusetts, United States) 20 1 8 1 0 user votes

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