When four Orioles' pitchers won their 20th game in the same week - Baseball Egg
Roric Harrison struck on 18 in a game for 1971 Rochester Red Wings
4 x 20: Orioles' 1971 Season Is One for the Books, Title or Not
Brooks Robinson (1937-2023), the Standard-Setter at Third Base
4 x 20: Orioles' 1971 Season Is One for the Books, Title or Not
The 5 Best Orioles Pitchers of All-Time - Baseball Egg
Baltimore Orioles - Wikipedia
Four 20-Game Winners with the 1920 Chicago White Sox and 1971 Baltimore Orioles
Retro Baltimore: The Orioles once had four 20-game winners in one season. No one has repeated the feat since.
The Phillies' Four Aces - The New York Times
4 x 20: Orioles' 1971 Season Is One for the Books, Title or Not
4 x 20: Orioles' 1971 Season Is One for the Books, Title or Not
MLB Mourns Loss Of Brooks Robinson