McClelland made no drawing for Josiah Thompson in 1966 or otherwise, according to Josiah Thompson.
The book by Josiah Thompson,
Six Seconds in Dallas, published in 1967, contains the above illustration, but the drawing is credited to a medical illustrator [Phillip Johnson], not Doctor McClelland.
McClelland is mis-stating the facts in the note you cite above. He did not make that drawing (according to the book), and he did not make any other drawing for Thompson (according to the author, Josiah Thompson). And you mis-stated the facts when you claimed that the drawing was a dictated drawing. It wasn't. Josiah Thompson is quite clear about the origin of the drawing, and it involves McClelland's testimony before the Warren Commission and a medical illustrator. McClelland wasn't involved at all during the creation of the drawing or even prior to the publication of the drawing, as Thompson did not seek to have McClelland approve the drawing in any way prior to the publication of
Six Seconds in Dallas.
Quoting Josiah Thompson:
Source:
http://educationforum.ipbhost.com/index.php?showtopic=16949&st=45#entry214702
McClelland, who says otherwise in his 1994 note, is wrong in that note. And can be proven wrong by information in the book itself from 1967. He can therefore be presumed to mis-state the facts in the 1989 interview with David Lifton (if he believes he made the drawing when the contemporary sources cited IN THE BOOK give the credit to another person entirely, why should we trust his memory in 1989 on the description of the wounds?)
Thanks for another opportunity to establish that 30-year-later recollections are not worth the paper they're not written on.
Hank