Carl Yastrzemski wore #8 for the Boston Red Sox.
Ted Williams wore #9 for the Boston Red Sox and that number has since been retired by the team.
Luis Aparicio wore #11 with the Boston Red Sox.
Tony Perez wore #5 for the Boston Red Sox.
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.
Lefty Grove wore number 10 with the Sox in 1934.
Here is a link to a website that has the history of "which" number were worn for the Red Sox as early as 1931.
Joe Cronin wore #4 for the Boston Red Sox in 1935 and again from 1937 to 1945. In 1936, he wore #6.
Yaz wore #8 for the Red Sox between 1961-1983. The number was retired in 1989.
Tim Wakefield of the Boston Red Sox.
Remy wore # 2 for the Red Sox.
Johnny Pesky from the Boston Red Sox
Eric Hinske was the last to wear #12
Ted Williams wore the number 9 for the Boston Red Sox.
Ted Williams wore uniform number 9 his entire career with the Boston Red Sox from 1939 - 1960.
Jim Rice. He was inducted into the Baseball Hall of Fame and his number got retired by the Red Sox on Tuesday.
Seaver wore # 41 his entire career.
Will Middlebrooks is number 16 on the Boston Red Sox.
Ted Williams wore number 9 on his Boston Red Sox uniform his entire career.
Mark Kotsay wore it at the end of this year
Incorrect Mike Lowell did not wear 29, Adrian Beltre wore it and before that John Smoltz