High Quality Content by WIKIPEDIA articles! Chrystal Macmillan (13 June 1872 – 21 September 1937) was a Scottish barrister, feminist and pacifist, and the first female science graduate from the University of Edinburgh as well as that institution`s first female honours graduate in Mathematics. She was an activist for women`s right to vote, and for other women`s causes. She was the first woman to plead a case before the House of Lords, and was one of the founders of the Women`s International League for Peace and Freedom.