Jim, I have found the 1880 census data for Pana, IL and Samuel T Allen is listed as 56 yrs of age. Wife Nancy age 53 is deceased. He has one son John D. age 25 and one daughter Carolina age 16 living with him. Place of birth is North Carolina. Home guard rosters will be hard to find but I did a search by name and came up with Samuel T. Allen in the 34th Reg't. North Carolina Infantry, Company B. His rank at enlistment was Pvt. and at discharge was Pvt. May not be the same Samuel. Go to Google and type in Civil War Rosters and you should come up with some sites.