Ella M. Haycock (b. Young) (1841-1923) was born in Bucksport, Maine, and died in Calais, Maine. She moved to Calais when a child. She married Willis M. Haycock in Calais in 1865. He was a Civil War veteran, having enlisted twice in the Union Army, first as a private in the 1st Battalion, Maine Light Artillery, and later as a quartermaster sergeant in the 3rd Battalion, Maine Light Artillery. He was employed as a store clerk before being appointed postmaster of Calais and then collector of customs for the Passamaquoddy District. After her husband's death in 1883, Haycock raised her six young sons as a single parent. She began studying Christian Science in the early 1880s, being acquainted with Josephine Tyter, a student of Mary Baker Eddy's. She joined The First Church of Christ, Scientist, in Boston, Massachusetts, on June 4, 1898, and served as First Reader of the Christian Science church in Calais. She was listed as a practitioner of Christian Science in The Christian Science Journal from 1900 until her passing. Haycock was also active in the Calais chapter of the Red Cross sewing and knitting department.

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