As for Mike Kelleher being uncredited, I think there is a credit listing on the inside pages that list him as doing lineart reconstruction. And hes, that's what he does - heck, what ALL of us do! Whether it's on a light board, or redrawing lines on a pixel by pixel basis....
Well, I think lightboxing the art and redrawing the entire thing is a bit different than retouching/correcting existing film.

In a previous thread, I asked why anyone would trace a page rather than decolor, and Michael agreed that it is no longer necessary to redraw pages due to increases in computing power.

I've never traced a page for Cory, or anything even close.