In 1933, when Hitler came to power in Germany, there was a place on Springfield Avenue in Newark, called Schwaben-Halle, where Nazis used to gather.
But Newark had its own anti-Nazi groups along the same time.
One man, a boxer named Nat Arno was a strongman for one of the anti-Nazi groups. His friends and family - sister Rose Yannick, wife Ann Arno, and fellow boxers Dave Halper and Bernie Callatane - describe how Nat struck a powerful blow for Jewish families in Newark.
Warren Grover, a former president of the Jewish Historical Society in New Jersey wrote a book called "Nazi's in Newark." These are his recordings, now kept at Jewish Historical Society of New Jersey.
https://www.youtube.com/watch?v=INgJZRFRyIc