Pitchers who owned Babe Ruth
September 25, 1932: General Crowder in command for 15th straight victory – Society for American Baseball Research
Baseball's Greatest What If – Sunbury Press Bookstore
1938 World Series, Baseball Wiki
More North Dakota baseball players who held MLB records - InForum
How many four-game sweeps have there been in the World Series? - Quora
Baseball history unpacked, October 18 - Bleed Cubbie Blue
The Twins Almanac for April 15–21 - Twins - Twins Daily
When the World Series brought America to a Standstill
Baseball history unpacked, July 6 - Bleed Cubbie Blue