(silver) Grace McKenzie
1920; 1924 swimming - 4x100 m freestyle relay
(gold) Don McKenzie
1968 swimming - 100 m breaststroke; swimming - 4x100 m medley relay
(bronze) Kim Turner (a.k.a. McKenzie)
1984 100 m hurdles
(silver/gold/bronze) Debbie Ferguson-McKenzie
1996; 2000; 2004 4x100 m relay; 200 m