These strikes were so successful that the government was forced to intervene and, in 1915, passed the Rent Restriction Act. Mary Barbour was an active member of the ILP and was later adopted by that organisation as a candidate and duly elected for the Fairfield ward. She was later elected onto Glasgow City Council and became a Baillie and a Magistrate.(One of the very few women of her era to achieve such positions). She never forgot working class women and continued to campaign on their behalf.
By this time it was clear that Helen Crawfurd was moving to the left politically. She joined the Independent Labour Party in 1920, but after attending the Congress of the 3rd International and in, She decided that the ILP was reformist and she left it to join the Communist Party.