Lee Wei
Kwa married Lee in secret in London in 1947 and then remarried in Singapore on 30 September 1950. They had two sons – Lee Hsien Loong and Lee Hsien Yang – and a daughter – Lee Wei Ling. Her brother, Kwa Soon Bee, served as a Permanent Secretary in the Ministry of Health. She had three sisters: Mrs Cheah, a teacher at Methodist Girls' School; Mrs Yong, the wife of Yong Nyuk Lin; and Mrs Earnest Lau, who was also a teacher at Methodist Girls School.