The Genealogy Division of the Indiana State Library holds the WPA Veterans Grave Registration records, which includes burial information for 19th century Indiana military veterans. Most of the soldiers included in this record category are Civil War veterans.
The Indiana State Archives has military records for Indiana soldiers who served in the War of 1812, the Black Hawk War, the Mexican War, the Civil War and the Spanish-American War. Also, the archives holds the 1886, 1890, and 1894 veterans’ enrollments records. The military records at the state archives generally give the soldier’s regimental and company designation, a physical description, age, nativity, occupation, enlistment date, and discharge or death date.
The Genealogy Division of the Indiana State Library has an index to Federal pension records; however, the actual pension files are held by the National Archives Records Administration and must be ordered through them.
I will provide copies of your ancestor’s state military records.