The other piece of new (to me at least) information from the Robin D.G. Kelley notes is that Prince Lasha, Charles Moffett, Dewey Redman and clarinetist John Carter were all in a Fort Worth high school band with Ornette Coleman. And I hadn't realized before I read it in the notes that Dolphy led only for studio session in his life and three of them were in 1960.
Also seems that nobody has a bad word to say about him as a person (except the trumpeter Eddie Armour). Sort of like Coltrane: in a documentary about Trane there's a wonderful moment where Elvin Jones says with complete sincerity: "He was a saint."