1938– The St. Louis Cardinals purchased Guy Bush from the Boston Bees.
2002– Luis Arroyo is inducted into the Latin American Baseball Hall of Fame Museum. The Puerto Rican reliever, who made the National League All Star squad as a rookie with the Cardinals in 1955, had an eight-year career mark of 40-32, saving 36 games with a 3.93 ERA and is best remembered for his 1961 season with the Yankees (15-5, 29 saves).
- Max Flack (February 5, 1890 – July 31, 1975) was a Major League Baseball outfielder. He played twelve seasons in the majors from 1914 to 1925 for the Chicago Chi-Feds/Whales (1914–15) of the Federal League, then the Chicago Cubs (1916–22) and the St. Louis Cardinals (1922–25) of the National League.
Flack was labeled the “goat” of the 1918 World Series. In the third inning of Game 6, at Fenway Park, his throwing error resulted in two Boston Red Sx runs, which provided the Bosox with the margin of victory, and a Series win, the last the Red Sox would achieve until 2004. Flack’s possible involvement in throwing that World Series has recently come to light. Although nothing conclusive was said, Black Sox pitcher Eddie Cicotte, who threw the 1919 World Series, has referenced the 1918 Cubs as having inspired the Black Sox. Of all the players on that team whose performance was murky, it was Flack, who had multiple strange errors and was picked off twice in one game, who had the most suspicious performance. He remains the only player to get picked off twice in one game in the World Series.
Flack is remembered, along with Cliff Heathcote, for being half of a unique player swap. On May 30, 1922, the Cardinals were playing a Memorial Day doubleheader at Cubs Park. Between games, Flack was traded for Heathcote. Both men appeared in both games that day.
- Chuck Diering (February 5, 1923 – November 23, 2012) was a Major League Baseball outfielder. He played all or part of nine seasons in the major leagues, between 1947 and 1956, for the St. Louis Cardinals, New York Giants and Baltimore Orioles. He made his debut on April 15, 1947, for the St. Louis Cardinals. In his career he hit .249 and 14 home runs and 141 runs batted in.
- Mike Heath (born February 5, 1955) is an American former professional baseball player. He played fourteen seasons in Major League Baseball as a catcher with the New York Yankees (1978), Oakland Athletics (1979–1985), St. Louis Cardinals (1986), Detroit Tigers (1986–1990), and Atlanta Braves (1991).
While Heath played most of his games as a catcher, he started his professional baseball career as a shortstop and played every position except pitcher during his major league career. He played 1,083 games at catcher, 142 games in right field, 79 games in left field, 39 games as a DH, 38 games at third base, four games each at first base and shortstop, and one game each at second base and center field. Drafted by the New York Yankees in the second round of the 1973 Major League Baseball draft, Heath made his major league debut with the New York Yankees on June 3, 1978 at the age of 23. He hit .228 in 33 games with the 1978 Yankees and appeared in one game of the 1978 World Series.He played for the Cardinals in 1986.
- Ray Gianelli (born February 5, 1966 in Brooklyn, New York) is a former Major League Baseball third baseman who played for two seasons. He played nine games for the Toronto Blue Jays during the 1991 Toronto Blue Jays season and nine games for the St. Louis Cardinals during the 1995 St. Louis Cardinals season. In has five career hits and a .143 batting average.