Marjorie Jackson-Nelson is an Australian former athlete and politician. She was the Governor of South Australia between 2001 and 2007. She finished her sporting career with two Olympic and seven Commonwealth Games Gold Medals, six individual world records and every Australian state and national title she contested from 1950 to 1954. Marjorie Jackson (Australia) set the women's 100 m world record of 11.5 in Helsinki, Finland on July 22, 1952. It stood 2 months, until Marjorie Jackson's 11.4 on October 4, 1952. Wiki link