Photo #: NH 59566 Frigate Merrimac Line engraving published in Harper's Weekly, 1861, as part of the larger print seen in Photo # NH 59236. It depicts USS Merrimack (incorrectly spelled Merrimac) under repair at the Norfolk Navy Yard, circa early 1861. She was burned when Federal forces abandoned and destroyed the yard on 20 April 1861. U.S. Naval History and Heritage Command Photograph.