A regional National Labor Relations Board office said this week that more than 200 hourly employees of the University of Chicago libraries may hold a union election. Hourly student employees are organized elsewhere, but this is the first hourly employee election order applicable to undergraduates since the NLRB said in August that student employees may form unions on private campuses. That decision, which related to graduate students at Columbia University, was surprisingly broad in its scope and opened the door to more undergraduate student employee unions.