She served as a Teachta Dála for the Dublin South constituency from 1921 to 1922 and 1923 to 1927.
She was a Member of Parliament (MP) for Dublin St Patrick's from 1918 to 1922.
A founder member of Fianna Éireann, Cumann na mBan and the Irish Citizen Army, she took part in the Easter Rising in 1916, when Irish republicans attempted to end British rule and establish an Irish Republic.
She was sentenced to death but this was reduced on the grounds of her sex.