Samuel Breadon (July 26, 1876 – May 8, 1949) was an American executive who served as the president and majority owner of the St. Louis Cardinals of Major League Baseball from 1920 through 1947. During that time, the Cardinals rose from languishing as one of the National League’s doormats to a premier power in baseball, winning nine NL pennants and six World Series championships.
Successful Pierce-Arrow dealer 
Born in New York City, Breadon moved from Manhattan to St. Louis at the turn of the 20th century. He prospered as the owner of Pierce-Arrow auto dealerships and became a self-made millionaire. In 1917, he also became a minority investor – for $2,000 – in the Cardinals, then a struggling, second-division team chronically strapped for resources. But the club’s enterprising young president, Branch Rickey, discovered that the team could compete successfully against richer opponents by developing its playing talent on an assembly line of minor league teams, from Class D to Class AA, that it owned and controlled. This was the creation of the farm system, perfected by the Cardinals and — when the Redbirds came to dominate the NL — copied by the 15 other major league teams.
President/owner of the Cardinals 
Rickey also served as manager of the Cardinals from 1919-25, and Breadon, who had bought out most of his partners to become majority owner, succeeded him as club president in 1920. In the middle of 1925, Breadon moved Rickey into the front office as business manager — general manager in contemporary terms — and promoted star second baseman Rogers Hornsby to playing manager. (Rickey, who worked for Breadon until the end of 1942, enjoyed wide-ranging authority, but Breadon would always reserve the right to choose the team’s field manager.)
In 1926, the Redbirds won their first pennant and first world championship with Hornsby at the helm, a seven-game triumph over the New York Yankees of Babe Ruth and Lou Gehrig. But during the offseason, Breadon traded Hornsby to the New York Giants, the result of a heated confrontation between owner and playing-manager in September 1926 over the playing of exhibition games during a pennant race.
Built NL dynasty 
Under Breadon, the Cardinals again would rule the baseball world in 1931, 1934, 1942, 1944 and 1946, with NL pennants also earned in 1928, 1930 and 1943. They would feature such all-time great players as Hornsby, Jim Bottomley, Chick Hafey, Dizzy Dean, Pepper Martin, Frankie Frisch, Joe Medwick, Johnny Mize, Enos Slaughter, Marty Marion, Red Schoendienst, and Stan Musial. And, with their on-field success and the advent of radio, they would develop a fanatical regional following, their appeal extending beyond Missouri and throughout the lower Midwest, Arkansas, Louisiana, the Great Plains states and much of the Southwest.
- Lowenfish, Lee, Branch Rickey: Baseball's Ferocious Gentleman. Lincoln, Neb.: University of Nebraska Press, 2007. Page 162
- Lowenfish, Lee, Branch Rickey: Baseball's Ferocious Gentleman. Lincoln, Neb.: The University of Nebraska Press, 2007.