Genealogy / Displaced Persons Camp / Work camp and concentration camp difference [86]

Merged: Information on Displaced Camps Needed

Hi,

I am wondering if anyone can give me information where I can find archives that list people by names in German displaced camps. Did they keep lists when people were there? My Grandparents were both from Poland during World War 2 and ended up in a displaced camp. I know they were married there and then came to the US. I am running into dead ends on my last name search. My last name is Stepun but I think it was changed for some reason when coming to the US. Both my Grandparent are decease so the info I have is limited. Any help would be much appreciated :)

Thanks