I suggest you look at Irvin's brain [0], which contains a lot of the connections. Red items are confirmed, documented CIA, yellow is "highly likely but not 100% confirmed".
[0] https://webbrain.com/brainpage/brain/6FBA86B0-0C57-9FCA-5CF9...
[0] https://webbrain.com/brainpage/brain/6FBA86B0-0C57-9FCA-5CF9...
That R. Gordon Wasson was part of the US government doesn't surprise me. That fellow thoroughly grilled John Marco Allegro with all kind of fallacies which are thoroughly debunked in Irvin's "The Holy Mushroom".