Originally Posted by
bballdad 
Tom, Dr Bob`s Son told me once it was Dr Bob`s last request of Bill Wilson.
Bill had come to see Dr Bob when he was dying of cancer and as Bill was leaving,Dr. Bob told him to "keep this thing simple" that what Smitty told me to do also
This is also consistent with the book
Dr Bob and the Good Oldtimers and the film
My name is Bill W starring James Woods and James Gardner as Bill and Dr. Bob, respectively.