I had a professor say MacArthur worked with and at UC Berkeley students and professors. But i can't find any information that supports such a claim.
Hi, while you're waiting for a direct response here, you may be interested in the discussion in this thread
Edit : also /u/firechicago's comment in Why did the Allied Powers not demand a constitutional ban on armed forces in the post-WWII German constitution like they did in the Japanese constitution?