When John was only 12 years old, Fletcher turned the school over to John’s older brother, Jonathan, who called upon the younger Dalton to assist him with teaching. He attended John Fletcher’s Quaker grammar school in Eaglesfield. Dalton was the youngest of their three offspring who survived to adulthood. Joseph married Deborah Greenup in 1755, herself from a prosperous local Quaker family. Early life and educationĭalton was born into a Quaker family of tradesmen his grandfather Jonathan Dalton was a shoemaker, and his father, Joseph, was a weaver. John Dalton, (born September 5 or 6, 1766, Eaglesfield, Cumberland, England-died July 27, 1844, Manchester), English meteorologist and chemist, a pioneer in the development of modern atomic theory.

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