Depending on where there belongings are it takes different things. If they sent their things to say, Switzerland for example, it is almost impossible to get them back. Because of their neutrality during the war, and the fact that they basically turned their backs on all of Nazi Germany's thefts and atrocities, they say that they "Do not know" or more like they don't care, what is who's. According to most countries you need some kind of proof that the item was in your possession throughout the war and was either stolen or sent away for safe keeping. You need proof of the fact that you owned the item. Whether it be a photo of it, some kind of paperwork, or an account number. Either way the possibility of getting the items back are astronomical. What is almost impossible to do is get life insurance policies and things of that nature. During the war most people who were selling life insurance knew that most of the Jews were not going to come back from the "Work Camps". So instead of doing it on the up and up they sold policies to people for which there are no one to claim. Now, if you know anything about the camps, you know that most items that were on the prisoners were taken, either to be burnt or resold. So for those who somehow were able to keep the needed paperwork on them, the banks and other places ask, believe it or not, for a DEATH CERTIFICATE showing that they had died! Last time I checked the Nazi's didn't issue those to family members. I know I went on a tangent, but I hope this can help you out.

-   Hagen