About Hans Maier (water polo player)
Hans Maier was a Dutch water polo player who competed in the 1936 Summer Olympics. Born in Madioen, Dutch East Indies, he was part of the Dutch team which finished fifth in the 1936 tournament, playing in all seven matches. He died in November 2018 at the age of 102. In June 1935, he broke the Dutch record in the 100 meter breaststroke by four seconds. The jury subsequently considered whether the record should be recognized. Because nowhere in the regulations did it say that the technique Maier used was not allowed, the record was recognized.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.