Mary Bagot Stack, known as Mollie Bagot Stack, founded the Women's League of Health & Beauty in 1930, the first and most significant mass keep-fit system of the 1930s in the UK. This has continued as an exercise system into the 21st century.
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- June 12, 1883
- Died
- January 26, 1935