Biography
Rosenbaum was a metal painter who had worked in San Bernardino, California. In 1934, while out of work, he went to Riverside to seek a job from a former employer. Police arrested him as he passed the hall where a Cannery and Agricultural Workers Industrial Union meeting was being arranged. He was prosecuted with the union defendants and sentenced to nine months in jail. Justice Moore required $2,500 cash bail and refused to accept property as security.