Greetje Galliard
Margaretha Cornelia Galliard was a Dutch swimmer who won a bronze medal in the 100 m backstroke at the 1950 European Aquatics Championships. She finished eighth in the same event at the 1948 Summer Olympics.
She wins the 100 m backstroke at the Great Prize of the town of Paris in September 1950.
After marriage, she changed her last name from Galliard to van Leersum.
Galliard died in October 2019 at the age of 92.