The Flat Rock cemetery is located near an area settled in the 1850s by Moses Ball and other pioneers. Tradition says the first burial here was an Indian. The second person was a small girl who died while her family was migrating through the area. The oldest tombstones are dated 1878. There are many unmarked graves in the cemetery.
The community, named for some flat stones that formed a landmark, had a Cumberland Presbyterian Church as early as 1883. The burial ground near the church was deeded from his land grant on August 28th, 1890, by ex-Texas Ranger George W. Stevens (1831-1893) for the cemetery. After 1914, the population of Flat Rock dwindled and the church was closed.	Confederate soldier's grave

 This cemetery contains grave sites for some Confederate veterans as well as county Sheriff George Stevens.