William N. Miller (1838-1913) was born in Ontario, Canada, and died in London, England. He graduated from the University of Toronto in 1861, worked as a lawyer, and married Frederica L. Lash in 1864. In 1885, he was made Queen's Counsel, an honor accorded in the legal profession throughout the British Commonwealth. Grief over the loss of their son turned him and his wife to Christian Science. The Millers became students of Pamelia J. Leonard, a student of Mary Baker Eddy's, and on December 29, 1894, they joined The First Church of Christ, Scientist, in Boston, Massachusetts. In November 1898, they completed Eddy's last Normal class. Miller was listed in the directory of The Christian Science Journal as a Christian Science practitioner in Toronto, Canada, in 1899. That year, Miller was appointed to the Board of Lectureship (which he would serve on until June 1909) and at Eddy's request went to England to deliver a lecture on Christian Science. He and his wife remained there to help establish First Church of Christ, Scientist, London, where William served as First Reader until 1905. Later, he was active in furthering the organization and growth of Third Church of Christ, Scientist, London, and was elected the church's president. He was listed as a practitioner in The Christian Science Journal in London for the rest of his life. Both of the Millers were members of the General Association of Teachers of England. Because they lived too far from Boston to attend meetings, the Millers were, on the recommendation of Eddy, made Honorary Executive Members of The Mother Church.

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