Bishop Francis Asbury first arrived in Georgetown in February 1785 and returned in 1786, when he established a slave mission at Boone Plantation on the Sampit River. He returned many times over the years, and his efforts helped lead to the establishment of Sampit Methodist Church in 1839. Oak Grove Methodist, which descended from Sampit, followed in 1890. C.C. Mercer donated the land on which Oak Grove Methodist Church was built. The first church was lost to fire in 1932, though the pulpit survived and remains in use. Services were held in Oak Grove School while a new building was constructed. The present sanctuary began as a simple frame structure but grew over time, with stained glass windows added in 1977 and the steeple and bell in 1988.