While doing some research on the role Cornelius Scranton Bushnell had with the USS Monitor, I came across the name of Samuel Pook who worked at Bushnell's shipyard in New Haven, Connecticut. That name was familiar so further looking found that he was the designer of the City Class on ironclads on the rivers in the western theatre.
These vessels were built by James Eads in Carondolet, Missouri, and Mound City, Illinois.
They were wooden-hulled with 2.5 inches of iron on the sides and built between August 1861 and January 1862.
They were the
Carondolet
St. Louis (later renamed Baron De Kalb)
Cairo
Pittsburgh
Mound City Cincinnati
Louisville
Sometimes referred to as Pook's Poodles, but I couldn't find any information on a name I seem to remember, Pook's Turtles.
Two of them , the Cairo and Baron De Kalb were sunk by torpedoes.
Funny-Looking, But Effective Ships. --B-Runner
The Battle of Fort Fisher, N.C.
