Sarah R. Ostrander (b. Avery) (1847-1904) was born in Connecticut and died in Poland, New York. In 1866 she married Welton B. Ostrander, a coffee and spice dealer who later became a wholesale grocer, in Syracuse, New York. They lived in Syracuse until at least 1900. In the mid-1880s Ostrander studied Christian Science with Ellen E. Cross, a student of Mary Baker Eddy, and indicated interest in taking the Normal course with Eddy, but it does not appear that she did so.

See more letters.