From an early age Marion had been involved in social reform. She was first introduced to it when she worked as a nanny for Joseph Fels in Philadelphia. Fels was a humanitarian who believed in a single tax on land, abolishing other taxes and ending poverty. He also believed in reforming prisons and the education system and, more importantly, in women’s suffrage.
Upon returning to England Marion joined Middlesbrough’s Independent Labour Party (ILP) and spoke out for socialism and women’s rights. She married Frederick Hansen in 1900, who shared her political beliefs.
In 1903 the Women’s Social and Political Union (WSPU) was founded and she became an early member.
