Mary Stewart (swimmer)

For the English writer and novelist see Mary Stewart

Mary Stewart-McIlwaine (born December 8, 1945 in Vancouver, British Columbia) is a retired freestyle swimmer from Canada, who twice broke the world record in the women's 100m butterfly in the early 1960s. She represented her native country in two consecutive Summer Olympics, starting in 1960 in Rome, Italy.

References

• Canadian Olympic Committee
• BC Sports Hall of Fame

Records
Preceded by Janice Andrew	Women's 100 metre butterfly world record holder (long course) August 12, 1961 – August 12, 1961	Succeeded by Susan Doerr
Preceded by Susan Doerr	Women's 100 metre butterfly world record holder (long course) July 28, 1962 – August 16, 1963	Succeeded by Kathy Ellis