Douglassville Cemetery Douglassville, Cass County, Texas Cemeteries of Texas Coordinator: Dolores I. Bishop Information provided by the State of Texas Atlas Site Location: Marker: Williamson Petty (1820-61), Sulphur River ferryman, donated land for this cemetery from a claim which he settled in 1850. Col. John C. Douglass (1818-63), from Georgia, bought in 1855 all of the Petty claim not previously reserved for school and church. The cemetery took its name from his town of Douglassville. The earliest legible stone (1859) marks the grave site of Mrs. Henrietta Cook and her infant twins. Additional land was acquired in 1928 and 1939. The cemetery has about 400 graves and a governing association.