[2] It was in Cambridge at a debate in the Newnham Parliament that Sophy first became interested in politics; listening to a speech by the Quaker Hilda Clark sparked in her a commitment to pacifism.
[1]: 26 Sophy Sanger worked for the Women's Trade Union League from 1903 to 1909, setting up its legal advice bureau whilst learning labour law at University College London.
[2] Her work on insurance regulations for workplace compensation meant she was called to give evidence before a parliamentary commission in the House of Lords and she helped Labour MPs prepare their case for the Shops Bill.
She believed that international cooperation and action on specific, practical reforms could effectively combat many worker's rights issues, for example: sweated labour, occupational disease and workplace injury.
[2] She returned to Britain in 1924 and read for the bar at Gray's Inn, publishing an authoritative article on labour law for the Encyclopaedia Britannica[1]: 259 Sanger died of illness on 7 December 1950 in Cambridge.