1922 Baseball History - This Great Game
Baseball: The Early Years (Oxford book by Dorothy Z. Seymour
Black Baseball Pioneers: Bill Holland, ace of the Black Yankees
Athletics' strong start spoiled in 7-5 loss to Yankees – NBC Sports Bay Area & California
1921: The Yankees, the Giants, and the Battle for Baseball Supremacy in New York by Lyle and Steve Steinberg Spatz - 1st edition - 2010 - from ArchersBooks.com (SKU: 2895)
GoingDeep: Phil Douglas' battle with baseball in 1922 derailed a stellar career
New York's championship drought reaches longest mark in a century - Newsday
The 1921 New York Yankees – Society for American Baseball Research
Advance historic page from Oct. 9, 1921: Babe Ruth missing from World Series game
August 27, 1921: Giants beat Pirates 3-1 to complete 5-game sweep – Society for American Baseball Research
GoingDeep: Phil Douglas' battle with baseball in 1922 derailed a stellar career