Margaret Todd

Margaret Georgina Todd (23 April 1859 – 3 September 1918) was a Scottish medical doctor and writer. She coined the term isotope in 1913 in a suggestion to chemist Frederick Soddy. Early life and education Todd was born in Kilrenny, Fife, Scotland, the daughter of James Cameron Todd and Jeannie McBain of Glasgow. She was educated in Edinburgh, Glasgow and Berlin. Her brother was James Cameron Todd a British Anglican canon and schoolmaster, who founded Michaelhouse school in South Africa. A Glaswegian schoolteacher, in 1886, Todd became one of the first students at the Edinburgh School of Medicine for Women after hearing that the Scottish Royal College of Physicians and Surgeons had opened their exams to women. She took eight years to complete the four-year course because, using the pseudonym Graham Travers, during her studies she wrote a novel, Mona Maclean, Medical Student.