Johannes Dirk Bloemen (Amsterdam, May 26, 1864 - Alkmaar, March 15, 1939) was a Dutch swimmer.
Flowers represented the Netherlands once at the Olympic Games: Paris 1900. In the capital of France, Flowers came out on the 200 meter backstroke. He scored fourth in a time of 3.02.2. Flowers was one of four swimmers in Paris, representing the Netherlands at the second (modern) Olympic Games in history. The others were Johannes Drost (200m backstroke), Herman de By (200m freestyle) and Eduard Meijer (four kilometers free battle).
He was a member of the Zwemvereniging De Amsterdamsche Zwemclub 1870. He was a professional by profession.
Flowers died on March 15, 1939 in Alkmaar at the age of 74
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