Francina Elsje "Fanny" Blankers-Koen was a Dutch track and field athlete, best known for winning four gold medals at the 1948 Summer Olympics in London. She competed there as a 30-year-old mother of two, earning her the nickname "the Flying Housewife", and was the most successful athlete at the event. Fanny Blankers-Koen (Netherlands) set the women's 100 m world record of 11.5 in Amsterdam, Netherlands on June 13, 1948. It stood 4.1 years, until Marjorie Jackson's 11.5 on July 22, 1952 (equalling it). Wiki link