Wong Nai Chung Gap
During the Battle of Hong Kong in World War II, Quah was a Lance Corporal in Hong Kong Volunteer Defence Corps. He was hurt in the defense of Stonecutter's Island and escaped the next attack by Japanese forces in Wong Nai Chung Gap in December 1941. After the surrender of Japan in 1945, he and Halward actively re-established Scouting in Hong Kong.