Sunday 3/2/1970 :
    Daryl Boston was promoted from AAA  to the active roster.
    John Briscoe was sent down from the active roster to AAA .

 
 Tuesday 4/1/1970 :
    Jack Remsen was promoted from AA  to AAA .

 
 Wednesday 4/22/1970 :
    Mickey Haefner was put on the DL.
    John Briscoe was promoted from AAA  to the active roster.

 
 Thursday 5/7/1970 :
    Mickey Haefner was activated from the DL.
    John Briscoe was sent down from the active roster to AAA .

 
 Monday 8/17/1970 :
    John Briscoe was promoted from AAA  to the active roster.
    Al Schmelz was sent down from the active roster to AAA .

 
 Monday 9/1/1970 :
    George Grant was promoted from AAA  to the active roster.
    Al Schmelz was promoted from AAA  to the active roster.

 
 Thursday 9/17/1970 :
    Larry Gura was put on the DL.

 
 Monday 10/5/1970 :
    George Grant was sent down from the active roster to AAA .