Nelly van Balen Blanken
Petronella "Nelly"/"Nel" Blaauboer-van Balen Blanken, with surname also spelled as Blauwboer and Blauwbos (18 November 1917 — 29 October 2008) was a Dutch athlete, who competed in the high jump, long jump and hurdles in the late 1930s and 1940s. She was named Dutch Athlete of the Year in 1938. She was a member of athletics club  and represented the Netherlands at international competitions. Fanny Blankers-Koen was a member of the same club in the same period. She became the silver high jump medalist at the 1938 European Athletics Championships.