In 1909, Boileau was arrested along outside
10 Downing Street with
Charlotte Despard,
Anne Cobden-Sanderson, and a number of others in the course of a 'picketing campaign for the Women's Freedom League'. Boileau was reported to have thrown a cardboard roll at Prime Minister Asquith when he refused to accept a petition. Boileau's name appears on the Roll of Honour of Suffragette Prisoners 1905–1914. She is also noted as among the arrested on a handbill from 1909. Boileau was one of 156 women who signed up to sit on the British committee for the
Women's International Congress at
The Hague in 1915, however restrictions on travel introduced by
Winston Churchill meant that only three were able to attend:
Chrystal Macmillan,
Kathleen Courtney, and
Emmeline Pethick-Lawrence.
The Vote recorded that after votes for women were achieved,Miss Boileau organised many meetings at her own house, where subjects were discussed dealing with Women Police, Factory Legislation, Housing, Women in India, etc. == Ethical Movement ==