Young- The DANFS site has a complete listing (sort of) CSN vessels. Here's what they have to say about the CSS Bombshell.

BOMBSHELL-believed to have been an Erie Canal steamer-as a U.S. Army
transport was sunk by the Confederate batteries in Albemarle Sound,
N.C., on 18 April 1864. She was raised by the Confederate forces and
taken into their navy under the command of Lt. A. G. Hudgins, CSN.
BOMBSHELL was recaptured in Albemarle Sound by MATTABESETT and SASSACUS
on 5 May 1864 and sent to New York.

More records of the Bombshell are in both the ORN and OR which can be accessed on Cornell University's "Making of America" site.