Was the Capitol used as a prison during the Civil War?

The old brick Capitol was built for the use of the Congress after the U.S. Capitol was burned by invading British troops during the War of 1812; it stood on part of the site now occupied by the Supreme Court Building.

Congress occupied the old brick Capitol between 1815 and 1819, while the Capitol was being rebuilt. The old brick Capitol was then used for various purposes; during the Civil War it served as a prison for the confinement of Confederate captives and of suspected collaborators. Following the Civil War the building was converted to residences. It was removed before the October 1932 laying of the cornerstone of the Supreme Court building.