Gehrig's pro career started four years before he became Yankees' first baseman
Lou Gehrig Day: MLB Raising ALS Awareness - The New York Times
For the Columbia Class of '41 It Is Always the Day After - The New York Times
Luckiest Man: The Life and Death of Lou Gehrig (The Life and Death of Lou Gerhig): 9780743245913: Eig, Jonathan: Books
Columbia Baseball
Lou Gehrig Is The New York Yankees' First Honored Legend
Lou Gehrig – Society for American Baseball Research
Lou Gehrig Day June 2nd 2021 details
Gehrig hi-res stock photography and images - Alamy
MLB celebrates second annual Lou Gehrig Day
Gehrig hi-res stock photography and images - Alamy
Major League Baseball Celebrates Lou Gehrig Day - Columbia University Athletics