mitchell, his wife francis, and their descendants continued to occupy walnut valley through many changes in ownership. in 1916, minerva pegram died, leaving the property to her daughters, may jones and carrie warren. by 1920, both women had passed away, leaving ownership of walnut valley to carrie's son, walker pegram warren. warren and his wife, violet, also owned neighboring bacon's castle and resided in smithfield, virginia. during their ownership, walnut valley's main products were peanuts and hogs. three generations of the mitchell family farmed and lived at walnut valley during the warrens' half-century of ownership. when the warrens died with no heirs in a car accident in 1972, walnut valley was sold at auction.