Statistics for occurrence #1 of “Neponset river” in chapter 1 of Medford Historical Society Papers, Volume 30.:

...tion. In 1775 chocolate was being manufactured in Boston. In fact it is probable that the only chocolate then manufactured in the colonies was made in the corner of a saw mill on the banks of the Neponset river on the site of the present mills of Walter Baker & Co. The maker was a young Irishman, Richard Harman. At his death, a few years later, a Doctor Baker who had interested himself in the young ma...
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