Beatrice Helen Worsley, Mexican-Canadian computer scientist (b. 1921)

Beatrice "Trixie" Helen Worsley (18 October 1921 – 8 May 1972) was the first female computer scientist in Canada. She received her Ph.D. degree from the University of Cambridge with Alan Turing and Douglas Hartree as advisers, the first Ph.D granted in what would today be known as computer science. She wrote the first program to run on EDSAC, co-wrote the first compiler for Toronto's Ferranti Mark 1, wrote numerous papers in computer science, and taught computers and engineering at Queen's University and the University of Toronto for over 20 years before her death at the age of 50.