You know, I just noticed that myself recently. It used to be published that he passed on September 12th. I remember that date vividly for personal reasons.
Then I noticed the date changed to September 17th on Wikipedia recently. It used to say September 12th, which is the date I remembered. I did a little research just this past week on this very topic. It, indeed, was September 16th, I believe, based on newspaper reports:
Willie Mosconi, acknowledged as one of the greatest pocket billiards players in the history of the sport, died on Thursday afternoon at his home in Haddon Heights, N.J. He was 80.
Source:
Willie Mosconi, 80, Who Ruled The World of Billiards With Style
The above article was written on September 18, 1993, which was a Saturday. It states Willie passed on the previous Thursday, which would have been September 16.
HTH! :smile: