Barbara Jordan and Mark Knowles are both what?
Barbara Jordan (tennis) Barbara Jordan (born April 2, 1957) is a former professional female tennis player from the United States who won the 1979 Australian Open singles title.
Ray Knowles Raymond Knowles (born 30 September 1952 in Willesden, London Borough of Brent) is an English former professional footballer who played in the Football League for Wimbledon as a forward.