National Pastime Museum: LOU GEHRIG APPRECIATION DAY AT 75 – Marty Appel
Yankees retired numbers - Newsday
History of retired numbers dates back to Lou Gehrig Day
An Awful Lot to Live For”: Lou Gehrig's Final Season in the News – The Unwritten Record
Rangers set to make Pudge's No. 7 their third retired number; who should be next, plus a historical look
Yankees Retired Numbers
Lou Gehrig Major League debut 100th anniversary
The Baseball 100: No. 14, Lou Gehrig - The Athletic
Revisiting death of Yankees legend Lou Gehrig 80 years later
MLB will hold annual Lou Gehrig Day on June 2, Trending
Last Ride of the Iron Horse – Sunbury Press Bookstore