Altona, near Charles Town, West Virginia, is a historic farm with an extensive set of subsidiary buildings. The original Federal style plantation house was built in 1793 by Revolutionary War officer Abraham Davenport on land purchased from Charles Washington. The house was expanded by Abraham's son, Colonel Braxton Davenport. During the Civil War the farm was a favored encampment. Generals Philip Sheridan and Ulysses S. Grant both used the house as a headquarters and meeting place.