I thought I'd gotten his autographs in-person 20 years ago - but it might be interesting to see if I can get these miscellaneous cards inked up through the mail.
It looks like the 85-year old Grant is still alive and has signed TTM for $5 each - I wrote out a letter, put together a request and these are my results.
I think requested for him to sign Jim 'Mudcat' Grant since I only saw him scribble out 'Jim Grant' on the successes I've seen - though he actually only wrote out his nickname and last name.