I was browsing the digitalized images from the Wisconsin Historical Society and found this interesting image.
Attached is a carte-de-visite of Captain William Colwell, Company B, 2nd Wisconsin Infantry. What I found interesting is the shoulder holster for his pistol, something I have never seen.
And while the items that he's wearing are definitely cool, he was killed at South Mountain. It just seems that many re-enactors focus on gear in these images and forget that these were men that left families and friends behind.