She is a member of a bargaining unit in the federal public service, but does not belong to the union which has exclusive bargaining rights for her bargaining unit. (slaw.ca)
In 1960, about 35 percent of public school teachers belonged to unions and today it's twice that at 70 percent. (wacharterschools.org)
Compared with workers in all occupations, teacher assistants had a higher percentage of workers who belonged to a union in 2016. (bls.gov)