» July 21, 1900: In the last of the 9th at Brooklyn, with two outs and the score tied at 5–5 with the Reds, an intentional walk to Deacon McGuire goes awry. McGuire reaches out and taps a Noodles Hahn pitch, but the catcher picks it up, then drops it, and the winning run scores.
» June 24, 1901:
The Chicago Nationals lose 2-1 to Brooklyn when Bill Dahlen hits a sac fly to bring home Brooklyn's Wee Willie Keeler. Brooklyn C Deacon McGuire throws out five Chicago runners.
» June 25, 1902: A federal court judge rules that Brooklyn has no claim on C Deacon McGuire, who jumped to Detroit. Two weeks later, another U.S. judge denies jurisdiction to stop Nap Lajoie from playing for Cleveland, thus ending the Phillies' chances of regaining him legally.
» February 21, 1904: The Yankees purchase 40-year-old Deacon McGuire from the Detroit Tigers.
» May 11, 1904:
In the opener of a 4-game series with the visiting Cleveland Blues, the New York Highlanders prevail, 4-2, on a 2-run HR by Kid Elberfeld and a pair of run-scoring singles by Deacon McGuire. The New Yorkers will take three of the four games to move into a tie 2nd place.
» June 7, 1907: Boston (AL) ships former player-manager Jimmy Collins to the Athletics for infielder John Knight. Collins guided the team to two pennants. They then buy 43-year-old Deacon McGuire from the Yankees and make him manager.
» June 17, 1907: The Red Sox sign their 4th manager this season when Deacon McGuire takes over for Bob Unglaub. Unglaub's record was 9-20.
» July 25, 1907:
Red Sox manager Deacon McGuire belts a pinch-hit solo homer off Detroit's Ed Siever. At age 43, McGuire is the oldest player to ever hit a pinch homer. His first round tripper came back in 1884.
» August 28, 1908:
The Red Sox replace manager Deacon McGuire with Fred Lake.
» August 22, 1909: Deacon McGuire is named as Cleveland's manager, replacing Nap Lajoie. The Deacon has previously managed Boston and Washington.
» October 9, 1910: The battle for the AL batting title is decided on the final day, when Detroit's Ty Cobb edges Cleveland's Nap Lajoie .3850687 to .3840947. Neither man covers himself with glory. Lajoie goes 8-for-8 in a doubleheader with the Browns, accepting six "gift" hits on bunt singles on which Browns rookie 3B Red Corriden is apparently purposely stationed at the edge of the OF grass. The prejudiced St. Louis scorer also credits popular Nap with a "hit" on the Brownie SS Bobby Wallace's wild throw to 1B. In Lajoie's last at bat, he is safe at first on an error call, but is credited with a sac bunt since a man was on. The St. Louis Post is just one of the papers to be openly critical of the move against Cobb. "All St. Louis is up in arms over the deplorable spectacle, conceived in stupidity and executed in jealousy." The Browns win the opener, 5–4, and Cleveland takes the nitecap, 3–0 with both managers, Jack O'Connor and Deacon McGuire catching. O'Connor is behind the plate for just an inning, but Maguire goes all the way.