Official Records
The records of the U.S. Circuit Courts for the Districts of Michigan 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
A finding aid for a portion of the records is available at: https://www.archives.gov/chicago/finding-aids/courts/us-courts-detroit.html
A published description of the records is also available in 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
Cohn, Avern, et. al. "The Federal Districts of Michigan." Michigan Bar Journal 67 (May 1988): 354-360.