This is a soldier of the 72nd Indiana, part of Wilder's Mounted Infantry Brigade. They were uniformed with cavalry style jackets but devoid of the yellow trim. Their trousers were of mounted pattern with re-enforced inner leg for saddle wear.
I chose to portray him as he may have looked at the Battle of Chickamauga. He carries a Joslyn or Burnside style cartridge box for his Spencer repeating rifle. His canteen is kept close, with his haversack and other gear strapped on his horse.
The figure was sculpted with Pro-Create. The putty is very similiar to Duro but is grey and is a little more sticky, which makes cutting a straight edge difficult. It's also tough to sand. The strong point is that it sticks and blends to cured putty wonderfully.