GAR Veteran?

[noman]

http://www.pinterest.com/pin/481463016384877508/

 

[FahanParish]

http://www.pinterest.com/pin/481463016384877508/

It looks like a GAR veteran. If you google the same, you'll see similar hats on identified GAR veterans. The GAR had officers of the organization and that looks like a GAR officer's hat to me.