Mark Baker (1785-1865) was born in Bow, New Hampshire, and died in Sanbornton Bridge, New Hampshire (now Tilton). Along with his brother, James, Mark inherited a 500-acre farm in Bow and Concord, New Hampshire, from his father, Joseph. Mark Baker was the father of Mary Baker Eddy and was first married to Abigail A. Baker (Mary's mother) and then to Elizabeth Patterson Baker, following Abigail's death in 1849. Mark Baker was a strongly religious man from a Protestant Congregationalist background. According to Eddy, her father was a firm believer in the final judgment and eternal damnation. He was a chaplain of the New Hampshire State Militia for many years and is also said to have served as a justice of the peace for his township.

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