List of times these teams got together for a deal:
June 11, 2002: The Minnesota Twins traded Warren Morris to the St. Louis Cardinals for a player to be named later. The St. Louis Cardinals sent Seth Davidson (minors) (June 20, 2002) to the Minnesota Twins to complete the trade.
July 3, 2001: The Minnesota Twins traded Hanley Frias to the St. Louis Cardinals for Larry Sutton.
April 22, 1988: The St. Louis Cardinals traded Tom Herr to the Minnesota Twins for Tom Brunansky.
August 19, 1984: The Minnesota Twins traded a player to be named later and cash to the St. Louis Cardinals for Chris Speier. The Minnesota Twins sent Jay Pettibone (October 2, 1984) to the St. Louis Cardinals to complete the trade.
April 5, 1983: The St. Louis Cardinals purchased Rod Booker from the Minnesota Twins.
October 23, 1981: The Minnesota Twins traded Mike Kinnunen to the St. Louis Cardinals for Jeff Little.
November 29, 1972: The St. Louis Cardinals traded John Cumberland and Larry Hisle to the Minnesota Twins for Wayne Granger.
September 1, 1971: The Minnesota Twins traded Stan Williams to the St. Louis Cardinals for players to be named later. The St. Louis Cardinals sent Fred Rico (September 14, 1971) and Dan Ford (minors) (September 14, 1971) to the Minnesota Twins to complete the trade.
October 20, 1970: The Minnesota Twins traded Bob Wissler (minors) and Herman Hill to the St. Louis Cardinals for Sal Campisi and Jim Kennedy.
July, 1969: As part of a 3-team trade: The Minnesota Twins sent Bill Whitby to the St. Louis Cardinals. The St. Louis Cardinals sent Bill Davis and Mel Nelson to MIN (NL).
November 29, 1967: The St. Louis Cardinals purchased Mel Nelson from the Minnesota Twins.
October 1, 1942: The Washington Senators purchased Paul Dean from the St. Louis Cardinals.
August 1, 1933: The Washington Senators traded a player to be named later and cash to the St. Louis Cardinals for Ed Chapman. The Washington Senators sent Bill McAfee (December 1933) to the St. Louis Cardinals to complete the trade.
May 14, 1919: The St. Louis Cardinals purchased Doc Lavan from the Washington Senators.