Alzire A. Chevaillier (1850-1935) was born in Nacogdoches, Texas, and died in Los Angeles, California. She was a writer and reformer who took Primary class with Mary Baker Eddy in March 1885. In the 1880s, Chevaillier began advocating for reform of the prison and mental health system and met with President Chester A. Arthur to ask for respite in the trial of Charles J. Guiteau until his mental state could be determined. In 1891, along with her mother, Sarah C. Chevaillier, she moved to Santa Rosa, California, and joined the Brotherhood of the New Life, a utopian community founded by Thomas Lake Harris. She left after six months and wrote an expose in the San Francisco Chronicle, which would contribute to the dissolution of Harris' group in 1893. She spent the remainder of her life writing and speaking about various social causes. There is no record of Chevaillier joining The First Church of Christ, Scientist, in Boston, Massachusetts.

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