I do have information about Thomas CAMMACK & Jemima McLEMORE. They were my ggg grandparents. His father was James CAMMACK, b. abt1750 in Ireland(?, d. bef. 1797. His mother was Mary or Elizabeth ???. He came to America in 1797 with his widowed mother, his twin brother James and his older brother, William. He settled in Copiah Co., MS.Does anyone know what happened to the mother or the two brothers?