Did a small dig on the former Rabbi for Tree of Life and found a collection of letters/memos/debriefings that he wrote in the 80's. Very interesting to see the history in real time through his eyes.
The site is a PITA to negotiate - you've been warned.
http://digifindingaids.cjh.org/?pID=338009
http://digital.cjh.org/view/action/nmets.do?DOCCHOICE=2069226.xml&dvs=1540949308954~651&locale=en_US&search_terms=&adjacency=&VIEWER_URL=/view/action/nmets.do?&DELIVERY_RULE_ID=2&divType=©RIGHTS_DISPLAY_FILE=ajhs-copyrightnotice-02