Official Records
The records of the U.S. District Courts for the Districts of Indiana are included among Record Group 21 at the:
National Archives at Chicago
7358 South Pulaski Road
Chicago, Illinois 60629-5898
Email: chicago.archives@nara.gov
A guide to the holdings of the regional archives is available at: https://www.archives.gov/chicago/holdings
Finding aids for portions of the records are available at:
https://www.archives.gov/chicago/finding-aids/courts/us-courts-lafayette
https://www.archives.gov/chicago/finding-aids/courts/us-courts-south-bend
https://www.archives.gov/chicago/finding-aids/courts/us-courts-indianapolis.html
https://www.archives.gov/chicago/finding-aids/courts/us-courts-new-albany
https://www.archives.gov/chicago/finding-aids/courts/us-courts-terre-haute
A published description of the records is also available it the Guide to Federal Records in the National Archives of the United States, 1995 (http://www.archives.gov/research/guide-fed-records/index.html ).
Bibliography
Geib, George W., and Donald B. Kite. Federal Justice in Indiana: The United States District Court for the Southern District of Indiana. Indianapolis: Indiana Historical Society, 2007.