If Oakland Hills CC, IN is Langford, it was redone and not much if anything resembling his work remains.
The following courses that I have not seen mentioned are also by Langford & Moreau:
1.) Kankakee Elks GC, Kankakee, IL
2.) Maxelton GC, Syracuse, IL
3.) Keweenaw Mountain Lodge, MI has green sites that resemble the L&M courses I have played, but have not found any documentation that this WPA course was designed by him.
Chris