Marianne Heemskerk, Dutch swimmer

Marianne Heemskerk

Dutch swimmer (born 1944)

Marianne Yvonne Heemskerk is a former butterfly swimmer from the Netherlands, who won the silver medal in the 100 m butterfly at the 1960 Summer Olympics in Rome, Italy. She was also part of the 4 × 100 m medley relay team that finished fourth. She also participated in the 1964…