Did anyone try to stop the holocaust

Yes. Jewish supporters in Germany and German occupied France hid Jews from the Gestapo, which was the German "secret" police. Once america and it's allies found out what the Germans were doing in the Concentration Camps, they pushed harder to stop it. So the answer is yes, some people did, otherwise the genocide would have continued.

hope this helps (;

Idon’t know this answer but you can ask google i bet the answer is on there