David Rusk, soldier and law-enforcement officer, was the son of John and Mary (Sterritt) Rusk. He and his brother Thomas Jefferson Rusk immigrated to Texas in 1836 from Clarksville, Georgia, and settled in Nacogdoches. He enlisted on April 6, 1836, as a private in Capt. Hayden Arnold's First Company of Col. Sidney Sherman's Second Regiment, Texas Volunteers, and fought in the battle of San Jacinto. Rusk was five times elected sheriff of Nacogdoches County, first in 1837 and last on March 2, 1845. In 1859-60 he succeeded William R. Scurry as acting commissioner of the boundary survey. Rusk was married to Elizabeth Reid. He died in Orange County on September 11, 1877.