» July 16, 1902: Giants owner Andrew Freedman announces he has purchased controlling interest in the Baltimore club and releases Dan McGann, Roger Bresnahan, Joe McGinnity, and Jack Cronin to sign with New York. Mike Donlin, Joe Kelley and Cy Seymour go to the Reds, where Kelley will take over as manager.

» May 7, 1903: At the Polo Grounds, Giants 1B Dan McGann steals four bases to lead New York to an 8-4 win over the Phillies. Christy Mathewson beats the Phils for the 2nd time in a week, scattering nine hits. Teammate Iron Joe McGinnity, a bench spectator, is tossed in the 8th inning by umpire August Moran for mouthing off too much.

» May 27, 1904: At the Polo Grounds, the Giants Dan McGann steals five bases in a 3-1 victory over Brooklyn, a feat not duplicated in the NL until August 24, 1974, by Davey Lopes. Otis Nixon will steal six for the record. Christy Mathewson (5-5) is victorious over Ned Garvin. The win gives the Giants (21-10) a tie with Chicago for first place, with the Reds in 3rd place by .001.

» June 29, 1905: At Brooklyn, the Giants tally seven runs in the first three innings off Mal Eason to coast to an 11–1 victory. Christy Mathewson leaves after five innings of shutout ball, and Mal Eason tosses the last four innings. Dan McGann paces the offense with a triple and homer, while Moonlight Graham, in his only game in the majors, takes over in right field as a late inning replacement. Graham will have no at-bats but will be made famous in W.P. Kinsella's Field of Dreams.

» July 19, 1905: The Pirates pull to within five games of New York by overcoming a 5-2 deficit and beating the Giants, 8-5. Bill Klem provokes a barrage of garbage from the New York fans by tossing Dan McGann and Mike Donlin out of the game for abusive behavior.

» June 6, 1906: Jack Harper, making his first pitching appearance for the Cubs after being traded by the Reds for Chick Fraser, retires all three Giant batters he faces, but is hit on his pitching hand by a line drive off the bat of the 3rd hitter, Dan McGann. Harper is lifted for pinch hitter Johnny Kling in the 2nd inning and never pitches again. The Cubs, on their way to a record 116 wins, top the Giants 11-3: Harper also pitched for the losingest team, the 1899 Cleveland Spiders.

» June 21, 1906: At the Polo Grounds, umpire Bob Emslie tosses John McGraw in the 4th inning, but his fellow ump Hank O'Day goes one better, banishing Joe McGinnity and first sacker Dan McGann in the 5th. Down 4-2, Christy Mathewson relieves for the Giants and shuts out the Pirates over the last four innings. The Giants load the bases in the 9th and Chappie McFarland relieves a tired Sam Leever. A single scores one and with two outs, Doc Marshall singles to score the winning run. Mathewson wins, 5-4.

» June 18, 1907: In a Giants win, Roger Bresnahan is hit in the head by a pitch from Andy Coakley of the Cincinnati Reds and is given the last rites while he lays on the field. Hospitalized for 10 days, he will develop a primitive headgear for batters during his convalescence. Teammate Dan McGann is also hit by a Coakley pitch in the same inning (4th), breaking his arm, and will be out of action until the 1st of August.

» September 13, 1907: At Washington Park, Christy Mathewson tops Jim Pastorius, 2-1, striking out 11 Superbas batters. Dan McGann is 4-for-4 for New York, while teammate Jack Hannifin collects a single, double, triple and two walks in his five at bats.

» December 13, 1907: Friction between his catchers and the need to strengthen the Giants infield prompt John McGraw to trade Frank Bowerman, along with Bill Dahlen, Dan McGann, George Browne, and Cecil Ferguson to Boston for young SS Al Bridwell, veteran 1B and recently fired manager Fred Tenney, and reserve C Tom Needham.

» December 13, 1910: Former New York Giant Dan McGann, 39, who ended his 13-year career in 1908, shoots himself in a Louisville hotel.