Field & Staff with Officers of Companies--NCO Staff
The One Hundred and Ninth Regiment--Was composed wholly of Minute Men. Two companies from Coles country, Illinois, offering their services to the Governor, were accepted and assigned to this regiment. Laporte county furnished two companies; Hamilton county two; Miami county two; Randolph and Miami counties, one company each. The regiment was organized on the 10th of July, 1863, with John R. Mahan as Colonel, and contained an aggregate of seven hundred and nine rank and file. It left Indianapolis by rail on the 13th, arriving at Hamilton, Ohio, the next morning. Thence it proceeded to Cincinnati, when, the emergency being passed, the regiment returned to Indianapolis, and on the 17th of July, 1863, was mustered out.