Mary J. Armstrong
Mary J. Armstrong is a former teachers union official who led the St. Louis, Missouri-based Local 420 of the American Federation of Teachers until 2017. She sat as a vice president of the national union until leaving office in 2018-2019.
Mary J. Armstrong is a former teachers union official who led the St. Louis, Missouri-based Local 420 of the American Federation of Teachers until 2017. She sat as a vice president of the national union until leaving office in 2018-2019.