Wolfpacks U-634 was part of
U-634 operated with the following Wolfpacks during its career:
Westmark (6 Mar 1943 - 11 Mar 1943)
Amsel (22 Apr 1943 - 3 May 1943)
Amsel 2 (3 May 1943 - 6 May 1943)
Elbe (7 May 1943 - 10 May 1943)
Elbe 1 (10 May 1943 - 14 May 1943)