Bertha F. Cook (b. Kinzel) (1888-1977) was born in Atchison, Kansas, and died in Chicago, Illinois. Cook was a vocal and music teacher, as well as a soprano, who sang with the Boston and New York Symphony orchestras. Her father, Charles F. Kinzel, was a student of Mary Baker Eddy's. Cook was a member of First Church of Christ, Scientist, St. Joseph, Missouri, when she joined The First Church of Christ, Scientist, in Boston, Massachusetts, on November 3, 1911. She married Archibald M. Cook in New York, New York, in 1916. In 1925, she was head of the voice department at Tulsa College of Fine Arts in Oklahoma, and she became head of the vocal department at the Weaver Conservatory of Music in 1926. During the 1940s, she was a junior high school music teacher in Tulsa. According to her granddaughter, Cook worked as a librarian at a Chicago Reading Room in the 1950s.

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