http://books.google.com/books?id=wMoGAQAAIAAJ&pg=PA397&dq=%22Natchez+Volunteer+Riflemen%22&hl=en&ei=-qctTqyBLPPXiAL2g8CwAg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCkQ6AEwAA#v=onepage&q=%22Natchez%20Volunteer%20Riflemen%22&f=false
At a minimum the Mississippi units who served at the Battle of New Orleans...
Hinds Dragoons
Natchex Volunteer Riflemen (Wilkins)
Nielson's 1st Regiment, Mississippi Militia, Amite County
Captain Green's Company of Mississippi Militia, 15th Regiment
Captain Calvitt's Company of Mounted Infantry
7th Regiment (Perkin's Battalion) of Mississippi Militia, Captain Samuel Bullen's Company
David