Gillian Apps Syl Apps' grand-daughter, Gillian, won 2 gold medals in the Olympics.
Syl Apps' son, grand-daughter and grand-son were all notable hockey players and his grandson won a gold medal in Olympic rowing.
His son Syl Apps, Jr. also played in the NHL. His granddaughter Gillian Apps won the Gold medal in both the 2006 Winter Olympics and 2010 Winter Olympics for Canada's Women's Ice Hockey Team, and his grandson Syl Apps III was a college hockey star at Princeton University and played four years in the minor leagues. His grandson Darren Barber won a gold medal at the 1992 Barcelona Olympics in the Men's 8 in rowing.