​Harmony Grove Baptist Church, constituted in 1859, is the daughter of Zoar Baptist Church (1808), a granddaughter of Hermitage Baptist Church (1789) and a great-granddaughter of Glebe Landing Baptist Church (1772). Between 1838-1847, Zoar Baptist built two new houses of worship, one in Deltaville and the other on one acre of land in a grove of oak trees located at Harmony Village. This house of worship was called Harmony Grove because of the beautiful surroundings of stately trees and the peaceful atmosphere that pervaded the gathering, of 124 charter members.     

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On Sunday, May 24, 1857, a few members of Zoar Baptist organized the Sunday School at Harmony Grove Meeting House with twelve teachers and forty-three scholars. For some time, the advisability of organizing a new church had been discussed. Zoar granted Harmony Grove the land and promised her the deed 'after the church "shall have been regularly organized and trustees appointed for same." Harmony Grove Baptist Church was constituted on the twenty-first day of June 1859.​​​​​​​​​​​​​​​​​