1926– The World Champion Cardinals trade Rogers Hornsby to the Giants for Jimmy Ring and Frankie Frisch, who will play an integral role in the success of the Gas House Gang in the 1930’s after being sent to St. Louis due to a falling out with New York’s manager John McGraw. The trade gets complicated when the ‘Rajah’ refuses to sell his 1,167 shares of the team stock back to the Redbirds at the asking price.
1980- The Brewers obtain future Cy Young winners Rollie Fingers  and Pete Vuckovich  in a deal with the Cardinals, sending pitcher Lary Sorensen, outfielder Sixto Lezcano and minor league players Dave Green and Dave LaPointe to St. Louis.
Trading History and Transactions
1904– The St. Louis Cardinals purchased Jack Warner from the New York Giants
1926– The St. Louis Cardinals traded Rogers Hornsby to the New York Giants for Frankie Frisch and Jimmy Ring
1999– The Milwaukee Brewers traded Fernando Vina to the St. Louis Cardinals for Eliezer Alfonso and Juan Acevedo.
2000– Hanshin Tigers (Japan Central) purchased Eduardo Perez from the St. Louis Cardinals
Branch Rickey 1881 – executive
Spud Davis (1904) – made his major league debut with the St. Louis Cardinals on April 30, 1928 however, after only two games, he was traded to the Philadelphia Phillies
Grant Dunlap (1923) – he played professional baseball for 11 seasons, and appeared in 16 major league games for the St. Louis Cardinals in 1953.
Jose DeLeon (1983) –is a Dominican former professional baseball right-handed pitcher who played in Major League Baseball (MLB) with the Pittsburgh Pirates, Chicago White Sox, St. Louis Cardinals, Philadelphia Phillies, and Montreal Expos, over all or parts of 13 seasons (1983–1995). DeLeón was the National League (NL) strikeout leader, in 1989, while with the Cardinals. For his career, he compiled a win–loss record of 86–119, in 415 appearances, with a 3.76 earned run average (ERA), and 1,594 strikeouts. He was a 3rd round draft pick of the Pittsburgh Pirates in the 1979 amateur draft. and twice led the NL in losses, posting a record of 2–19 in 1985, for the Pirates, and 7–19 in 1990 with the Cardinals.
Chris Narveson (1981) -Narveson was traded by the Cardinals to the Colorado Rockies on August 11, 2004, along with Luis Martinez, to complete an early trade for Larry Walker. Narveson returned to the Cardinals on August 8, 2005, when they selected him off waivers from the Red Sox. He made 15 starts in 2006 for the AAA Memphis Redbirds with a 2.81 ERA and was called up to the big leagues for the first time when rosters expanded in September. He made his Major League debut by working 2 innings of relief on September 8, 2006 against the Arizona Diamondbacks, allowing two earned runs. He made his first start on September 22, 2006 against the Houston Astros but only lasted 4 innings. Overall, he made 5 appearances (with the 1 start) for the Cardinals in 2006 and had an ERA of 4.82 with no decisions. He only made 12 minor league starts in 2007 due to a left shoulder injury.
Doc Farrell died on this date in 1966
Mike Knode died on this date in 1980