Thanks to the recent guidance of Jewish Gen members, I was able to get a copy of my grandfather's restitution (reparations) file from Germany.  In it, he states that he was held in the Neustadt Weinstrasse labor camp in 1933 and in Obermoschel Palatinate prison in 1934.  I wonder how I can locate documents from these locations that would give information about his detention.  In addition, I wonder if there are diaries or narratives about the experiences of prisoners in these places or similar labor camps/detention centers.  Thank you, Melissa Kahn