Dirty Billy

Frog leapin' my previous post, I did a little research into Civil War reenactment gear and came up with a few links to hat makers that work specifically in that era.
Dirty Billy's Hats
Clearwater Hats

As I stated previously, I'm more fond of the Rebs (CS) headwear which in most cases consisted of civilian hats and the popular "beehive" or "beegum" hats which, as a historical note, it should be mentioned that these were turned up in the brim rather than allowed to slump into the "hillbilly" style.

Beehive

Sugar Loaf crown.