Agree with Derek. The OldCardboard list is quite outdated. That list was created by Phil, here is his updated list that was posted on this site..
http://www.net54baseball.com/showthread.php?t=141603
that combined with the "earliest collectibles" link, that Derek posted earlier. Which is another of Phil's lists. Make for great references.
And honestly, I generally scour Derek's image event page quite often as a reference too..