The following data is extracted from A History of the Pioneer Families of Missouri - Warren County.
Thomas Graves, of Culpepper County, Va., was a soldier and Quartermaster in the revolutionary war. He married the widow Simms, by whom he had Thomas N., Elizabeth, Nancy, Lucy, and Waller. Thomas married Mary Mason., of Virginia, and in 1806 he removed, with his father and sisters Elizabeth and Nancy, to Barbour County, Ky., from whence in 1820, they came to Warren County, Mo. The names of Thomas children were James B., William M., Candice A., Henry B., and Lucy M. Mr. Graves was Judge of the County Court of both Montgomery and Warren counties. James B., his eldest son, moved to Oregon. William M. disappeared in a mysterious manner while in New Orleans, Louisiana. Candice married Usurdus Brainbridge, of St. Charles County. Henry B. married Lucinda Howell, and lives in California. Lucy M. married Woodson A. Burton, who settled in Warren County in 1830. Warren, the brother of Thomas Graves, settled in Warren County in 1826. His children, whose names were John, Henry, Mary, and Ann, remained in Virginia.
Source: A History of the Pioneer Families of Missouri - Warren County