reporter: when erna d vries was a teen, anti-semitism was widespread.hey targeted her as the daughter of a jewish mother. >> >> >> i have a stolen youth behind me. i had no use at all. thanks to nazis and -- nazism. being subjected to hostile remarks, and being excluded, it was horrible. especially for a child. reporter: mrs. de vries says back then, the number imprinted upon her robbed her of h her identity. >> if i had it removed, i would have a scar here. that would remind me as well. it always reminds you, you can't do anything about it. reporter: erna de vries survived the holocaust, but she neverer w her mother again. before they were separated, she told her she must fight, survive,e,nd tell t the world wt they did to us. she has done that all her life. at 95 years old, it is getting more difficult. that is why vanessa eisenhardt has taken over. she and other students taking part of the project called second witnesses, tell the stories of holocaust survivors to others, like at the school in southern germany. >> she said it was basically a death tr