<prompt> Ronald Kroon 17 September 1942, Amsterdam  12 July 2001, Huizen dә shima Dutch freestyle swimmer dәwo medal konnuye indiya suwudәna suro 1962 European Aquatics Championships lan  <response>: kǝla kǝnǝngabe. Shiye kuru bikkewa 1960 kuru 1964 Summer Olympicsbe dən bakcin na 8th suro 4×100 meters medley relay lan. Suro saa 1960 -a 1964 -a lan shiye kambo lardǝye diyau ro walzǝna kuru shiye rekod lardǝye 12 sutuluna suro 100 m freestyle lan. Shi dǝ shima bikke Dutchbe buro salakye wo do mita 100 lan suro sekon 55 lan bǝrǝmzǝna wo. 