He decided to make his daughters into tennis stars after seeing the great Romanian player Virginia Ruzici on TV.
When Serena won her first U.S. open in 1999 he did a victory dance in the NBC broadcast booth.
He was married to Berry Johnson from 1965 to 1973 and they had two daughters and three sons. He then married Oracene Price, the mother of Serena and Venus, in 1980. He and Oracene divorced in 2002.
He often noted the press interviews that tennis is still an overwhelmingly white sport, and his daughter Venus Williams was the first black woman to be ranked #1.