Welcome to this Forum . I hope you'll enjoy your stay with us . Don't hesitate to share your thoughts and knowledge relating to US Medical Department subjects .
I replied to your query yesterday, and would recommend to try the SECOND option . I once contacted one of the official KZ-Gedenkstätte (this one was for Buchenwald), and received replies + photocopies of documents after a few weeks !
Good luck and kind regards ,
Alain S. Batens