Marianne Heemskerk

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 Summer Olympics but did not reach the finals. Heemskerk broke the world record in the women's 200m butterfly on 12 June 1960 in Leipzig, East Germany.

28 August 1944

Born on the same birth day (28 August): Charles Boyer • Cristina Deutekom • Jack Dreyfus • Jo Kwon • Johann Wolfgang von Goethe • Lee Janzen • Ryan Madson • Shania Twain • Tõnu Kaljuste • Warren M. Washington • Windsor Davies

Born in the same month (August 1944): Charles Wang • Christine King • Conrad Black • Rocky Johnson • Simon Taylor (journalist)