Swimmer Tricia Duncan is the older sister of Tim Duncan, who professionally played what sport for 19 years
Tim Duncan Timothy Theodore Duncan (born April 25, 1976) is an American retired professional basketball player who played his entire 19-year career with the San Antonio Spurs of the National Basketball Association (NBA). Widely considered to be the greatest power forward of all time, he is a five-time NBA champion, two-time NBA MVP, three-time NBA Finals MVP, NBA All-Star Game MVP and NBA Rookie of the Year. He is also a 15-time NBA All-Star and the only player to be selected to both the All-NBA and All-Defensive Teams in all of his first 13 seasons.
William Robinson (swimmer) William Walker Robinson (23 June 1870 – 4 July 1940) was a Scottish-born competition swimmer who represented Great Britain at the 1908 Summer Olympics in London. Robinson swam in the men's 200-metre breaststroke, and came second for the silver medal with a time of 3:12.8. He was 38 years old at the time of the 1908 Olympics, and was the oldest swimmer to win a medal in Olympic history for 100 years, until the 41-year-old American Dara Torres won three silver medals at the 2008 Olympics.