Thank you for this so detailed answer. Frankly speaking, I feel myself (at least slightly) guilty that the answer consumed so much your valuable time.
Previously I though that NIZKOR is a reliable source of information. Now it is not so obvious for me.
By the way, just few minutes ago I read this article
http://news.yahoo.com/s/ap/20060514/ap_ ... N5bmNhdA--
It appears, that Holocaust reseachers have problems to access some documents.
Ten Cate is especially interested in the cabinet that holds copies of the Jewish Council's files. Among its contents, he believes, are the names of the few Dutch Jews who could travel freely and who enjoyed other privileges under the Nazi occupation.
Examining those records "will give us insight into the politics of divide and rule by the Nazis — which groups had higher or lower chances of survival," he said.
"I was astonished to find it in Bad Arolsen. The Red Cross in The Hague didn't let me see the original cabinet," Ten Cate said.
Much of the information on Jewish victims in Bad Arolsen already is duplicated in the huge archives at Yad Vashem memorial in Jerusalem and the Holocaust Museum in Washington.