The mansion passed through the Adams-Cox family to George Cox, a grandson of G. W.
Adams, who owned the property until the 1960s. In 1969 the home was sold to a distant
relative of George Cox, Eugene Cox. Eugene operated a gravel mining company, the Cox
Gravel Company, which proceeded to mine the remaining 275 acres associated with the
estate. Cox's wife Peggy convinced him to purchase the Edward Adams home in Adams
Mills, Ohio, as well. The Cox family lived at the Adams Mills home until Eugene's death in
the 1990s.