The Stanstead area was important in the beginnings of Adventism in the Eastern Townships, and William Miller, the movement's founder, preached there as early as 1835. Built in 1866 by church trustee Jeremiah Spear, this colonial style church was first called the Union Meeting House and also served Methodist, Anglican, Universalist, and Baptist congregations before the Advent Christian Church gained exclusive use of the building in 1893. From its beginnings, the congregation has included both Americans and Canadians. Its facade is framed by a triangular pediment and two pilasters, with two doors, originally one for men and one for women, and a shuttered window, while the doorways are topped by unadorned entablatures supported by plain pilasters.