Her father, Qi Houzhi (齐厚之), was the head of the law bureau in the Nationalist government's Third Army during the Northern Expedition.

[3] Yun sent her younger sibling to the schoolgirl's team of the Counter-Japanese Military and Political University, which had set up a branch school in Tunliu.

[4] A documentary about Qi was made in 2001, detailing her revolutionary background, titled Loyal and Dependable——Qi Xin wife of Xi Zhongxun (Chinese: 忠贞——习仲勋的夫人齐心; pinyin: zhōngzhēn——Xí Zhòngxūn de fūren Qí Xīn).

[2] Later, the head of education at the Counter-Japanese Military and Political University wrote to Xi, introducing Qi Xin, after having met her sister and father.

After sending Xi her own autobiographical introduction, the two married at the prefectural party office in Suide County on 28 April 1944.

Chai gained media attention for gambling US$39 million at Melbourne, Australia's Crown casino in one period of 18 months.