On December 28, 1942, Babe Ruth was the most prominent of nearly 50 German-Americans to sponsor a full page ad in the New York Times and ten other major publications denouncing Hitler's policy of cold-blooded extermination of Jews and encouraged the German people to rise up against him.
For more details see this story in the Jewish Post co-authored by our own Les Wolff.
http://www.jewishpost.com/news/Babe-...ring-WWII.html