L. Lucretia S. Brown (Lydia Lucretia Smith Brown) (1827-1883) was a lifelong resident of Ipswich, Massachusetts, and a student of Mary Baker Eddy's, studying with her in October 1876. In 1877, she joined the Christian Scientist Association, serving as secretary from March 1878 until June 1880. In May 1878, she filed suit against Daniel H. Spofford (1842-1924) for using mesmerism to injure her; the case was dismissed by the court. She withdrew from the Christian Scientist Association in November 1882 because she was unable to attend meetings regularly, but she remained a Christian Scientist until her death the following year.

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