The #4 was retired in 1984 in honor of Joe Cronin. Those that wore #4 for the Red Sox: 1931: Rabbit Warstler
1932: Hal Rhyne
1933: Smead Jolley
1934: Roy Johnson
1935: Joe Cronin
1936: Eric McNair
1937-1947: Joe Cronin
1948-1949: Sam Mele
1950: Ken Keltner
1951-1954: Lou Boudreau
1955-1959: Jackie Jensen
1960: Lu Clinton
1963-1964: Roman Mejias
1965: Rudy Schlesinger, Jim Gosger
1966: Don Demeter
1967: Don Demeter, Norm Siebern
1969: Billy Conigliaro, Tom Satriano
1970: Tom Satriano
1971: Ben Oglivie
1972-1974: Tommy Harper
1976-1980: Butch Hobson
1981-1982: Carney Lansford
Carl Yastrzemski wore #8 for the Boston Red Sox.
Luis Aparicio wore #11 with the Boston Red Sox.
Tony Perez wore #5 for the Boston Red Sox.
Click on the 'Red Sox Numbers' link on this page to see every player that wore every number in Red Sox history.
Ted Williams wore #9 for the Boston Red Sox and that number has since been retired by the team.
That was Johnny Damon who wore #18 for the Red Sox between 2002-2005.
Mike Ryba, a pitcher, wore #20 for the Red Sox between 1942-1946.
Joe Cronin wore #4 for the Boston Red Sox in 1935 and again from 1937 to 1945. In 1936, he wore #6.
Lefty Grove wore number 10 with the Sox in 1934.
Tim Wakefield of the Boston Red Sox.