These are the landowner for the following counties that will give you an idea as to where Thorntons were living in 1815 prior to the births of your Martha and Elizabeth in the Northern and Northeastern area of Virginia. 1815 Landowners for following: Part of Alexandria County, Virginia Thornton-None Culpeper County, Virginia Thornton George A. George A. John A. John Jr. William Fairfax County, Virginia Thornton Benjamin Fauquier County, Virginia Thornton-None Frederick County, Virginia Thornton John S. Independent City of Alexandria Thornton George A. William F. Independent City of Fredericksburg Thornton Anthony r. Lucey Independent City of Winchester Thornton-None Loudoun County, Virginia Thornton-None Madison County, Virginia Thornton Peter Orange County, Virginia Thornton Daniel George John A. Peter of Madison County, VA Prince William County, Virginia Thornton, Thomas Rockingham County, Virginia Thornton Joseph Shenandoah County, Virginia Thornton-None Spotsylvania County, Virginia Thornton Charles Francis Philip Ruben, estate Stafford County, Virginia Thornton George James