Fannie L. Clark (1854-1936), also known as Fannie Clark Gleason, was born in Sutton, Massachusetts, and died in Philadelphia, Pennsylvania. She became interested in Christian Science in the summer of 1884 and had intended to study with Mary Baker Eddy in September of the same year. However, for personal and financial reasons, she was unable to study with Eddy at that time. In November 1884, she was admitted to the Christian Scientist Association as a non-member, regularly attended meetings, and maintained a healing practice in Boston, but in October 1885, she resigned her membership because the Association was to be exclusively for Eddy's students. In March 1886, she took Primary class with Eddy but never joined the Association as a full member. In May 1887, she married Charles H. Gleason, a Congregational church pastor. They later divorced in 1898. Fannie L. Clark's involvement in the Christian Science movement appears to have ended shortly after studying with Eddy.

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