Marion Stinson Crerar helped to found the Hamilton branch of the
Imperial Order Daughters of the Empire (IODE), a women's club, and served as the club's regent from 1902 to 1919. She led the club in promoting locally made goods in Hamilton, and raising funds for tuberculosis prevention. The latter work led to her joining the women's auxiliary of the Hamilton Health Association, which operated the Hamilton Mountain Sanatorium for Consumptives. She also founded a second sanatorium at
London, Ontario. She was the only woman speaker at the Ontario Anti-Tuberculosis Convention in 1908. During World War I, she worked with the IODE and the
Canadian Red Cross to raise money for Canadian troops. In 1915 she opened her own home as a convalescent home for returning servicemen. In 1917, she advised "the new women voters" to keep their votes secret, saying "The women's votes can be of enormous power if we do not make the mistake of talking too much." All three of her sons enlisted; one son (Alistair Crerar) was badly wounded in 1918, and one son (Malcolm Crerar) was killed in action as a member of the Royal Air Corps in 1917. ==Personal life==