Sarah A. McMahon (b. King) (1837-1922) was born in Missouri and died in Northfield, Illinois. As a child she lived in Ray County, Missouri. In 1855 she married Philip J. McMahon, a physician, in Andrew County, Missouri, and by the 1870s they were living in Council Bluffs, Iowa. After her husband's death in 1875, McMahon continued living in Council Bluffs until the mid-1880s, thereafter living in the Kansas City, Kansas, area before moving to Chicago, Illinois, by 1894. In 1883 she experienced healing through Christian Science treatment, and in 1886 she took a class in Christian Science from Ursula N. Gestefeld, one of Mary Baker Eddy's students. McMahon expressed interest in studying with Eddy herself, and applied to the Massachusetts Metaphysical College, but the available records don't indicate that she attended. From the late 1880s through the early 1900s McMahon advertised as a spiritual healer, teacher, and lecturer in various New Thought and Unity publications. In 1920 she went to live at St. Ann's Home for the Elderly in Northfield.

See more letters.