The survivors of the Holocaust

I am not sure these details are easily available , as a lot of them would have been eliminated or misplaced over the years, however a rough estimates of the areas affected the most by the Nazi rule are given here:

http://en.wikipedia.org/wiki/Holocaust

Please see Schindler's List (1993) too...it was directed by Spielberg and captures the horrors of the Nazi Rule.Try to read the book 'The Diary Of Anne Frank' as well.. these will provide a little insight into the Nazi operations.