John Carroll Lathrop (1871-1941) was born in Freeport, Illinois, and died in Boston, Massachusetts. He was the son of Laura V. Lathrop, a student of Mary Baker Eddy's. John Carroll Lathrop took Primary class instruction from his mother and also attended the November 1898 Normal class given by Mary Baker Eddy. He joined The First Church of Christ, Scientist, in April 1895, and he was a Christian Science practitioner and teacher listed in the directory of The Christian Science Journal from 1903 until his passing. From May 1903 until February 1908, he served at various intervals in Mary Baker Eddy's household. In 1911, he was elected as First Reader of The Mother Church, and then in 1914, he was elected as its President. He served on the Christian Science Board of Lectureship from 1918 to 1924.

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