Colleen S. De Reuck is a long-distance runner from South Africa, who became an American citizen on 11 December 2000. She has had a long-lasting career, running in her forties, and made a total of four appearances at the Summer Olympics. She was a late bloomer and her first major success came in 1995 and 1996, when she won the Honolulu Marathon and the Berlin Marathon. Despite numerous appearances in the Summer Olympics and the IAAF World Championships in Athletics, medals never came on the track. After her transfer to compete for the United States in 2000 she won her first major world medals, taking the individual bronze and team silver at the 2002 IAAF World Cross Country Championships. Another team bronze came at the following year's championships and she won at the 2004 and 2005 USA Cross Country Championships. She continues to run and finished third at the Houston Half Marathon in 2009, finishing in 1:12:14. 

April 13th, 1964 in Vryheid (Age 60)