Riley Cemetery Pittsburg, Camp County, Texas Cemeteries of Texas Coordiantor: Dolores I. Bishop Information provided by the State of Texas Atlas Site Location: 14mi. SE of Pittsburg on FM 557 at County Line Baptist Church Marker : The oldest documented grave in this cemetery, that of Louise Gillum, dates to 1859. The land was acquired by John Riley, Sr., in 1875, and became known as Riley Cemetery. Early settlers buried here include John and Elizabeth Keeling Riley and their five children; Confederate Capt. George W. Keeling, a former member of the Georgia State Legislature; the family of M. H. Couch, whose name graces Couch Mountain, Camp County's highest elevation point; and many area pioneers whose descendants continue to live in the area and maintain the historic graveyard.