The Indiana Genealogical Society has added a database for Madison County to the County Records section of the Members Only area:
--Veterans in Madison County, Indiana (1886)
This database comes from a soldiers enrollment list, which enumerated the veterans of all past wars (including the Civil War) who were living in the county in 1886. If the veteran was deceased, the enrollment list included information on their widows and children. It is a premium database, accessible only to IGS members.
The Indiana Genealogical Society now has 772 databases in the Members Only area. They cover all 92 Indiana counties and encompass 500,000+ records.