Kinlock is a place whose name is of unknown origin, though a Scottish site bears the same name. The Kinlock Historic District was found eligible for the National Register of Historic Places in 2000 and includes the Rock Shelter, which preserves evidence of thousands of years of human activity; the Springs, used by Native Americans and settlers alike; and the Kinlock Tract, apparently named by David Hubbard, containing his home and mill site. David Hubbard, who lived from 1792 to 1874, served as a US and Confederate Congressman and as the Confederate Indian Affairs Commissioner. He and his brother Greene bought 480 acres that became the Kinlock tract. Greene bought and developed the mill site on 12 Jun 1828, then sold 80 acres to David on 14 Nov 1842, with the deed mentioning the mill. Later owners of the mill included Jesse M. Hall in 1881, Masterson-Stephenson in 1889, and JJ Riddle in 1905. The covered bridge, once located 1/4 mile from the mill, is of unknown date, though records show it by 1879. In 1933, a Civilian Conservation Corp of 192 men and three officers and the US Forest Service used David Hubbard's home as headquarters. At one time, Kinlock Spring was noted for its medicinal properties, and many people reported gratifying results.