Berendina Johanna "Bets" Dekens (later de Vries, 25 October 1906 – 13 August 1992) was a Dutch discus thrower. She competed at the 1928 Summer Olympics and finished in 17th place with her all-time best throw of 29.36 meters.
This was the first women's track and field event to be completed in Olympic Games history.
Dirk Janssen (11 July 1881 – 22 November 1986) was a Dutch gymnast who competed in the 1908 Summer Olympics.Born in Groningen, Janssen was part of the Dutch gymnastics team, which finished seventh in the team event. In the individual all-around competition he finished 69th.He was the younger brother of Jan Janssen. He died at the age of 105 in Haarlem.