Xian Muzhen (L) and Xian Muhe pose with photos of their childhood during a photo exhibition held at the China Welfare Institute (CWI) Nursery in Shanghai, east China, June 12, 2018. This year marks the 80th anniversary of CWI, founded by Soong Ching Ling in 1938. The Shanghai-based organization focuses on maternal and child health, education and social welfare. Soong Ching Ling, born in Shanghai in 1893, was the wife of Chinese revolutionary Dr. Sun Yat-sen, who led the 1911 Revolution. (Xinhua/Gao Feng)

File photo taken in Jan. 1960 shows Soong Ching Ling posing with kids at the Children's Palace under the China Welfare Institute (CWI) during the Chinese Spring Festival in Shanghai, east China. (Xinhua/CWI)

People, then members of an art troupe at China Welfare Institute (CWI) Children's Palace, look at old photos at CWI Children's Palace in Shanghai, east China, June 12, 2018. (Xinhua/Gao Feng)

People, then members of an art troupe of China Welfare Institute (CWI) Children's Palace, look at an old photo at CWI Children's Palace in Shanghai, east China, June 12, 2018. (Xinhua/Gao Feng)

Triplets Xu Manzhen (L), Xu Manying (C) and Xu Manjing pose with their childhood photo at the China Welfare Institute (CWI) Nursery in Shanghai, east China, June 12, 2018. (Xinhua/Gao Feng)

File photo taken in Nov. 1951 shows Soong Ching Ling looking after children at a nursery of the China Welfare Institute (CWI) in Shanghai, east China. (Xinhua/CWI)

Triplets Zheng Shanyi (L), Zheng Shanyi (C) and Zheng Shanshan pose with their childhood photo at the China Welfare Institute (CWI) Nursery in Shanghai, east China, June 12, 2018. (Xinhua/Gao Feng)