The property is also historically significant for its connection with John Augustine Washington III (1821-1861), who hired architect Edmund Lind in 1858 to construct an addition to Waveland after agreeing to sell Mount Vernon to the Mount Vernon Ladies' Association. Not long after Washington occupied Waveland, he accepted a commission as Lt.Col. in the Confederate States Army, and died in September 1861, also during the Battle of Cheat Mountain. The ruins of Washington's eight-dwelling slave quarter remained on the property at the time of its historic listing.