If you have minors checked and the new players come in after the season is over then Gehrig coming in the offseason of 1920 is accurate since he was in Single A in 1921.
Gehrig attended PS 132 in the
Washington Heights section of
Manhattan, then went to Commerce High School, graduating in 1921.
[24][25] He then studied at
Columbia University for two years, before leaving to pursue a career in professional baseball.
[26] Initially, he went to Columbia on a football scholarship, where he was preparing to pursue a degree in
engineering. Before his first semester began,
New York Giants manager
John McGraw advised him to play summer professional baseball under an assumed name, Henry Lewis, despite the fact that it could jeopardize his collegiate sports eligibility. After he played a dozen games for the
Hartford Senators in the
Eastern League, he was discovered and banned from collegiate sports his freshman year.
[27] In 1922, Gehrig returned to collegiate sports as a fullback for the
Columbia Lions football program. Later, in 1923, he played first base and pitched for the
Columbia baseball team.
[27] At Columbia, he was a member of
Phi Delta Theta fraternity.
[2
https://www.baseball-reference.com/r...d=gehrig001hen