Stanisława Walasiewicz, also known as Stefania Walasiewicz, and Stella Walsh, was a Polish-American track and field athlete, who became a women's Olympic champion in the 100 metres. Born in Poland and raised in the United States, she became an American citizen in 1947. Stanisława Walasiewicz (Poland) set the women's 100 m world record of 11.7 in Warsaw, Poland on August 26, 1934. It stood 7 months, until Helen Stephens's 11.9 on April 10, 1935. Wiki link