Mainsville Cemetery is a non-denominational cemetery which was used as a community burial ground as early as 1895, however the land was not formally purchased for this use until 1901. In 1897 during the construction of Galop Canal, numerous graves were moved from Cardinal and interred this cemetery. In 1949, the fence surrounding the Mainsville Cemetery was painted and maintained by the Mainsville Women's Institute. As of the 1960s, the cemetery is under the care of the township and a board of trustees. In 1985, a new steel fence and gate were built replacing the old one.