Simon Miller, one of Stephen F. Austin's Old Three Hundred colonists, was born in Bedford County, Virginia, about 1782, the son of Simon and Elizabeth (Reade) Miller. The elder Miller was a captain in the Continental Army during the American Revolution. Miller married Sarah Lucinda Rucker in 1802. The couple settled first in Rutherford County, Tennessee; about 1809 they moved to Missouri (later Arkansas) Territory. Miller traveled to Texas in December 1821 and camped on New Year Creek in what is now Washington County. In April 1824 he voted in the election of the baron de Bastrop as Texas deputy for the constituent convention of the eastern division of the Provincias Internas. In June 1824 Miller was named third lieutenant of the colonial militia. On August 7, 1824, he received title to a sitio in Fort Bend County, his residence at the time. He returned to Washington County about 1826; the census of that year classified him as a farmer and stock raiser aged between forty and fifty. His household included his second wife, Sally, four sons, two daughters, one servant, and two slaves. In 1831 he obtained a quarter league on Cedar and New Year creeks. It is not certain whether it was he or a son of the same name who in 1836 volunteered with John Alcorn to bear an order to Henry Teal, and who, upon sighting two Mexicans whom they mistakenly took for spies of Gen. Antonio Gaona, returned to inform the delegates of the Convention of 1836 of an imminent attack, thereby hastening the adoption of the Constitution of the Republic of Texas. The attack, however, never occurred. Miller died on August 31, 1836, in Washington County. Another Simon Miller, a single man aged twenty-two who came from Missouri in December 1824, was probably his son.