Don Larsen pitched for the San Antonio missions during 1968 , a team within the Cubs ' minor league system .
Larsen started the 1968 season in the Cubs ' minor league system , pitching for the San Antonio Missions of the Texas League and Tacoma Cubs of the PCL , before retiring in the summer. < ref name= '' Digest15year '' > Larsen was also a good-hitting pitcher , finishing his career with a .242 average and 14 home runs .
Don Larsen