Isobel St. Clair Loutit (July 18, 1909 – April 19, 2009) was a Canadian mathematician, educator, inventor, and statistician.
[1] After learning of the deaths of several of her former students in World War II, Loutit signed up for an engineering job advertised to women with technical degrees, to replace the men who had gone abroad as soldiers.
Although officially employed by the government, she began working with Vernon Oswald Marquez at Northern Electric, to help develop an anti-aircraft targeting device.
[3] In her retirement, Loutit wrote several pieces on the local history of Montreal and Compton County, Quebec before returning to Winnipeg in 1989.
The Business and Industrial Statistics Section of the Society also offers an annual lecture, the Isobel Loutit Invited Address, in her memory.