I have a gun and crew and want to upgrade their uniforms to represent a specific group, but want to make sure that unit used the 12-pounder. I was going to do the Portsmouth Artillery (Light) Battery (Grimes Battery) or the Norfolk Artillery (Light) Battery (Grandy Battery) but can't find what kind of howitzers they used. I might have to go with the 1st Richmond Howitzers.
Here's a photo I found of the Norfolk Light Artillery Blues re-enactor group. I like these uniforms, but the caps I have are the BGT Richmond Howitzer caps (blue band vice red, can these be painted?):






