Mietje "Marie" Baron (5 February 1908 – 23 July 1948) was a Dutch swimmer and diver who competed at the 1924 and 1928 Olympics. In 1924 she was sixth in the 4 × 100 m freestyle relay. She was disqualified in the first round of the 200 m breaststroke event, as the judges believed she touched the wall with one hand instead of two hands at one of the turns. Meanwhile, her time of 3:22.6 was several seconds ahead of the gold medalist. Four years later she swam 3:15.2, but this was only enough for a silver medal, as her main rival Hilde Schrader clocked 3:12.6. At the 1928 Games Baron also competed in the 10 m platform diving event and finished fourth. Between 1926 and 1928 Baron set four breaststroke world records, two in the 200 m (3:18:40 on 24 October 1926 and 3:12:80 on 22 April 1928) and two in the obsolete 400 m event (6:54:80 on 20 March 1927 and 6:45:60 on 25 November 1928). In October 1929 she announced her engagement and retired from swimming. Next year she married Pieter Lourens de Puij. References 1908 births 1948 deaths Dutch female divers Dutch female freestyle swimmers Dutch female breaststroke swimmers Olympic swimmers of the Netherlands Olympic divers of the Netherlands Swimmers at the 1924 Summer Olympics Swimmers at the 1928 Summer Olympics Divers at the 1928 Summer Olympics Olympic silver medalists for the Netherlands Swimmers from Rotterdam Medalists at the 1928 Summer Olympics Olympic silver medalists in swimming 20th-century Dutch women 20th-century Dutch people