USS Baron DeKalb (1861) originally named USS St Louis

USS Baron DeKalb (1861) was a City-class ironclad gunboat constructed for the Union Navy by James B. Eads during the American Civil War.

USS Baron DeKalb, named after General Baron DeKalb of Hüttendorf near Erlangen, in present-day Bavaria, was originally named Saint Louis, and was one of seven City-class ironclads built at Carondelet, Missouri and Mound City, Illinois, for the Western Gunboat Flotilla.^[1]

These ironclads were shallow draft with a center driven paddle wheel. They were partially armored and slow and very hard to steer in the currents of rivers. This ironclad was also vulnerable to plunging fire and also by hits in their un-armored areas. Called “Pook Turtles” for the designer, they did yeoman service through four years of war and were present at almost every battle on the Mississippi River and its tributaries.

https://en.wikipedia.org/wiki/USS_Baron_DeKalb