Estelle D. Judd (b. Dow) (1854-1937) was born in Hudson, Ohio, and died in Brookline, Massachusetts. By 1860 she had moved with her family to Harmony, Wisconsin, and by 1870 to Chicago, Illinois. She married Curtis J. Judd in Black Hawk, Iowa, in 1881. He was a veteran of the American Civil War, having served in the 129th Illinois Infantry and attaining the rank of major. After the war he was a schoolteacher, and later he was one of the chief officers and stockholders of the Leslie E. Keeley Company, a worldwide franchise of unconventional alcoholic treatment centers founded by Judd's brother-in-law. Judd was the sister of Mary E. Keeley (b. Dow), who was one of Mary Baker Eddy's students, a Christian Science practitioner, and a member of The First Church of Christ, Scientist, in Boston, Massachusetts. Judd studied Christian Science with Eddy's student George B. Day in Chicago and joined The First Church of Christ, Scientist, in Boston, Massachusetts, on January 2, 1897. She was also a member of First Church of Christ, Scientist, Chicago, Illinois. Sometime prior to 1900 Judd moved to Brookline, Massachusetts, and in the 1920s and 1930s she also lived in Menton, France, for periods of time. She was listed as a practitioner in The Christian Science Journal from 1911 until 1935 in both Brookline and Menton.

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