» January 11, 1969: The Cubs obtain veteran reliever Ted Abernathy from the Reds for three minor leaguers, C Bill Plummer, OF Clarence Jones, and P Ken Myette.
» June 6, 1976:
Reds backup catcher Bill Plummer collects seven RBIs in the Reds 13–2 win over the Cards. Plummer's hits include a solo homer, a 3-run triple, the only three bagger of his career.
» October 10, 1991:
Manager Jim Lefebvre is fired by the Mariners and replaced by 3B coach Bill Plummer.
» April 16, 1992: Seattle manager Bill Plummer mistakenly fills out a lineup card with two first baseman and no DH. It doesn't help as the Mariners go on to lose the game to the White Sox, 5–4.
» October 13, 1992:
The Mariners fire manager Bill Plummer.