USRC / CSS Lewis Cass
CSS Lewis Cass, originally the United States Revenue Cutter Lewis Cass, was seized by the Alabama authorities on 31 January 1861 and later turned over to the Confederate States Navy.
Capt. J. J. Morrison, commanding the cutter Lewis Cass at Mobile, decided, like General Lee, to cast his lot with the Confederacy, and accordingly turned over his ship to Alabama, 30 January 1861. The crew remained loyal to the United States and made its way through the hostile South to reach Northern territory.
Source: History.navy.mil