Do not praise too early...
Looking at the dates, he was perhaps in the camp in Bonn-Hardthöhe/Hardtberg), which was freed on the 8th. This camp was much bigger with ten-thousands of POWs. The area was later (1955)used for the German Department of Defense. There is also a memorial stone:
Secretary of defense inaugurating memorial stone
The next POW camp to Siegburg was in Rösrath: Stalag VI G Arb-Kdo 281. Concededly this camp was freed not on 8 but on 12 April 1945, by taskforce Delnore of the 46th Tank Battalion,
Christoph
Christoph,
The camp at Bonn-Hardthöhe/Hardtberg was liberated by the 1st Infantry Division between 7 and 10 March 1945, not April. This action eliminated German resistance west of the Rhine in the First Army area of operations.
The 46th Tank Battalion was organic to the 13th Armored Division. Any task force of an armored division was made up of the combined arms. To clairfy, this means the liberators of Rösrath: Stalag VI G Arb-Kdo 281 included units of the division other than the 46th Tank Battalion. Any attempt to determine the specifics of the liberation would require an examination of the reports and journals of those units, as well as the 46th Tank Battalion, and the combat command to which it was attached. Since CCB was refitting and reorganizing in the Dunnwald area on 11-12 April, the liberating parent unit was most likely CCA.