E. S. Coursen (later Emily S. Dainty) (1847-1921) was born on Mackinac
Island, Michigan, and died in Chicago, Illinois. In 1883 Coursen studied with Charles
Osgood, a metaphysician based in Charlestown, Massachusetts. She met with Mary Baker
Eddy in Boston shortly after and expressed her dissatisfaction with Osgood's teaching.
Eddy offered to teach Coursen at a discounted rate and she accepted, studying with Eddy
in Chicago in May 1884. Coursen was the wife of Abraham G. Coursen, the business partner
of John Sherman, the younger brother of Bradford Sherman. Bradford was a student of
Eddy's who played an important role in the growth of the Christian Science movement in
the Midwest. There is no record of Coursen joining the Christian Scientist Association
or uniting with the Church of Christ (Scientist).
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