Anna Karin Larsson (later Ahlström, 30 August 1941 – 21 September 2019) was a Swedish swimmer who won a bronze medal at the 1958 European Aquatics Championships in the 4×100 m freestyle relay. She competed in the same event at the 1956 and 1960 Summer Olympics and finished sixth in both games. Individually, she was eliminated in the preliminaries of the 100 m and 400 m freestyle. Larsson retired from active swimming in 1962 to focus on her studies; she graduated in physiotherapy from Lund University.
https://en.wikipedia.org/wiki/Karin_Larsson