 Elizabeth left school in 1913 , and began work filling seed packets for five shillings a week . The job was too monotonous to engage her for long , and after a few months she found a post in the drapery department of the Walton Road Co @-@ operative store . At her mother 's insistence she became a member of the Shopworkers ' Union . Meanwhile , she attended classes run by the Workers ' Educational Association and the Plebs ' League : " They told me how the capitalists controlled money , business and the land , and ... hung on to them " . 
