David Broome was a succcesful competitor in what sport in the 1960s and 1970s?
Open jumping Grand Prix show jumping Horse jumping Showjumper Show Jumping Stadium jumping Show jumping Show-jumping British Showjumping Showjumping Show jumper
show jumping showjumper stadium jumping horse jumping show jumper showjumping open jumping british showjumping grand prix show jumping
show jumping
WikipediaEntity
Show jumping