 The nearby area was used by Union artillery July 1 prior to the "last stand of the Union 1st Corps on Seminary Ridge", then by Confederate artillery after being captured in late afternoon.The last patient at the hospital left on September 16, 1863 (Colonel George McFarland),

Lightning set the cupola afire in 1913 and seminary use of Old Dorm ended in 1954.The 1939 Adams County Historical Society moved to the building in April 1961 and in 1995 began their current 30 year lease (the preceding archive library was in the county courthouse).