Author Colin Wilson has died, age 82. He wrote a biography of Aleister Crowley and books about mysticism and the paranormal and it seems reasonable to suppose there was overlap between his readers and those of Robert Anton Wilson.
Indeed, RAW read Colin Wilson; Colin Wilson's name pops up in RAW's writings, as in this autobiographical essay on H.P. Lovecraft's influence on RAW's writings:
Like Colin Wilson (no relative, as far as I know), I am also temperamentally incapable of writing the typical Lovecraft ending – the note of bleak cosmic despair that makes HPL strangely akin to mainline fiction of our day with its ever-defeated heroes and ever-hostile universe. I use Lovecraftian horror because I think it is an aspect of the truth, a poetic mythos that says something real about our predicament as mammals aware of our own fragility and mortality. I cannot restrict myself to that horrible perspective, because I think it is only one aspect of many.
In the comments for the Nov. 27, 2013, entry for this blog (on RAW's "famous" admirers), Michael Johnson writes, "from a letter RAW wrote in Ireland to his old San Francisco friend Kurt Smith on 29 November, 1984, RAW's writing about interviewing Colin W. in Cornwall two weeks earlier, presumably for New Age magazine: 'Colin is charming, intelligent, generous, a fan of my works, conceited, arrogant, humorous; all in all, I like him. He gave me a pile of his books, which I have been reading.') I couldn't find the letter at rawilsonfans.com.