| 21 October 1944 | Erected | Diocese of Fort Wayne (Newton, Fulton, Jasper, Pulaski, Benton, Warren, Fountain, White, Tippecanoe, Montgomery, Cass, Carroll, Clinton, Boone, Miami, Howard, Tipton, Hamilton, Grant, Madison, Blackford, Delaware, Jay, and Randolph)
| Diocese of Lafayette in Indiana (erected)
|