American POW Camp - Attichy in France 1945

Hello everyone

I would like to ask You about American POW Camp in France during Second World War. This is short story.

My friend’s grandfather as a 17 years old boy was recruited to Wehrmacht Army, although he was Pole. (this a long story to describe, maybe next time). In 2nd of April 1945 he and other Wehrmacht soldiers was captured in Halle (Germany) by  10th Tank Battalion (commanded by lt.col. Hamberg). This unit was a part of 5th US Armored Division.  Next he was transported to Rheinberg-Namur- Attichy (France). In Attichy he spent some time, perhaps to 28th of April 1945, when polish force took over him to polish army in Italy.

I would like to ask You

  1. 1.)    Where (I mean archives) can I find some information about Attichy camp and German prisoners?  I would like to know which American units guarded camp etc.
  1. 2.)    Did American officers make in POW’s camp some prisoners list?