USS Baltimore-- Part 2: Built in Philadelphia and Captured By U.S. Army on Potomac River in 1861

From Wikipedia.

Sidewheel steamer.

Launched 1848.  Acquired by capture  April 21, 1861.  Commissioned April 186.1 Decommissioned May 22, 1865.  Sold June 24, 1865.

500 tons 200 feet long, 26.8 foot beam

Armament  one 32-pounder smoothbore gun.

The Baltimore was built in 1848 at Philadelphia, Pennsylvania, and captured on the Potomac River between Aquia Creek and Washington, D.C., by the U.S. Army on April 21, 1861.

--Old B-Runner