Offseason

• November 17, 1946: Tom Poholsky
  Tom Poholsky
  Thomas George Poholsky was an American professional baseball player, and a pitcher in Major League Baseball from –. A right-hander, he stood tall and weighed ....
  
   was drafted by the Cardinals from the Boston Red Sox
  Boston Red Sox
  The Boston Red Sox are a professional baseball team based in Boston, Massachusetts, and a member of Major League Baseball’s American League Eastern Division. Founded in as one of the American League's eight charter franchises, the Red Sox's home ballpark has been Fenway Park since . The "Red Sox"...
  
   in the 1946 minor league draft.
• December 13, 1946: Hal Epps
  Hal Epps
  Harold Franklin "Hal" Epps was an outfielder for the St. Louis Cardinals, St. Louis Browns, and Philadelphia Athletics.Although he only spent parts of four seasons in the majors, Epps had an 18-year professional baseball career...
  
   was selected off waivers by the Cardinals from the Philadelphia Athletics
  Oakland Athletics
  The Oakland Athletics are a Major League Baseball team based in Oakland, California. The Athletics are a member of the Western Division of Major League Baseball's American League. From to the present, the Athletics have played in the O.co Coliseum....
  
  .
• Prior to 1947 season: Rip Repulski
  Rip Repulski
  Eldon John Repulski was an outfielder in Major League Baseball. From 1953 through 1961, he played with the St. Louis Cardinals , Philadelphia Phillies , Los Angeles Dodgers and Boston Red Sox . He batted and threw right-handed...
  
   was signed as an amateur free agent by the Cardinals.

Regular season

• May 6: There were rumours of a walkout by the Cardinals in protest of having to play Jackie Robinson
  Jackie Robinson
  Jack Roosevelt "Jackie" Robinson was the first black Major League Baseball player of the modern era. Robinson broke the baseball color line when he debuted with the Brooklyn Dodgers in 1947...
  
   and the Brooklyn Dodgers
  1947 Brooklyn Dodgers season
  On April 15, Jackie Robinson was the opening day first baseman for the Brooklyn Dodgers, becoming the first black player in Major League Baseball since . Robinson went on to bat .297, score 125 runs, steal 29 bases and be named the very first Rookie of the Year...
  
  . The rumours resulted in an article published by Stan Woodward of the Herland Tribune. The Cardinals played the game and lost by a score of 7-6, despite holding a 6-3 lead.
• May 21: Jackie Robinson played his first game at Sportsman's Park
  Sportsman's Park
  Sportsman's Park was the name of several former Major League Baseball ballpark structures in St. Louis, Missouri, USA, all but one of which were located on the same piece of land, the northwest corner of Grand Boulevard and Dodier Street on the north side of the city.- History :From...
  
  . The Dodgers won by a score of 4-3 in ten innings.
• September 11: Cardinals catcher Joe Garagiola and Jackie Robinson were involved in an incident at home plate. Garagiola stepped on Robinson's foot and the two started arguing. Umpire Bean Reardon held back Garagiola while Robinson clapped. The incident was later part of a children’s book titled In the Year of the Boar and Jackie Robinson.

Notable transactions

• May 3, 1947: Harry Walker
  Harry Walker
  Harry William Walker, known to baseball fans of the middle 20th century as "Harry the Hat" , was an American baseball player, manager and coach.-Early life and family:...
  
   and Freddy Schmidt
  Freddy Schmidt
  Frederick Albert Schmidt is a former pitcher in Major League Baseball who played for three different teams between and . He was born in Hartford, Connecticut. Listed at 6' 1", 185 lb., he batted and threw right-handed....
  
   were traded by the Cardinals to the Philadelphia Phillies
  Philadelphia Phillies
  The Philadelphia Phillies are a Major League Baseball team. They are the oldest continuous, one-name, one-city franchise in all of professional American sports, dating to 1883. The Phillies are a member of the Eastern Division of Major League Baseball's National League...
  
   for Ron Northey
  Ron Northey
  Ronald James Northey was an American professional baseball player and coach. He was an outfielder for the Philadelphia Phillies , St. Louis Cardinals , Cincinnati Reds , Chicago Cubs and Chicago White Sox...
  
  .

Roster

Starters by position

Other batters

Starting pitchers

Other pitchers

Relief pitchers

Farm system