Their son, Don Turnbull, was a prominent tennis player and squash champion.
Her father, Victor Niederhoffer, is a wealthy investor, Harvard graduate and former national squash champion.
The bride's grandmother Mrs. William F. Howe was the first national women's squash champion.
Born in Utrecht, Timmer also won golf tournaments, became Dutch squash champion, played badminton and hockey.
She grew up with sports - her mother was an Irish squash champion - and her first ambition was to be a sports broadcaster.
The husband is a commodities broker and squash champion; the wife recently stopped working in his business to take care of their three daughters, all 6 years old or younger.
Derrick Corson Niederman is an author, mathematician, game designer, and national squash champion.
A Standard Athletic Club member was the first squash champion of France.
A former national squash champion, the President-elect is said by opponents to have an innate feel for the right position and a soft touch.
In 1936, he became the Victorian amateur squash champion.