The Spilman-Mosby House was once owned by John Mosby, whom served as a Confederate General in the United States Civil War. Years after the Civil War, the home became the Mosby Musuem. However, the Mosby Musuem was closed for years and the town of Warrenton decided to sell the property to a private owner. In September 2020, a new owner moved into the home.
During Easter 2021, the owner of the Spilman-Mosby House gave author Philip Andrew Hamilton a tour of the home.