Arnstein graduated in 1935 and then continued for another three semesters, including some time in the law school. In 1936, while in law school, she became section organizer for the party’s professional section. She later recalled “everything was so secretive” that she didn’t even know who was in the professional section. Membership lists were kept secret, and everyone used a code name. The code name she chose was Mary Wollstonecraft, the eighteenth-century advocate for women’s rights. Having a membership card was “too dangerous,” so no one had one. She remembered the professional section as composed of several units of about eight people each; each unit met every week or two at a member’s house. Concluding that she should be a member of the working class, she quit law school, went to a business school, gave up learning to type, and got a job as a cashier at a department store in San Francisco.