Who is Cixi's father?

I hope I can solve your problem. This is a favor. Empress Dowager Cixi's father, named Cheng Wai, worked as a pen holder in the official department. He is a civil servant who is equivalent to the secretary and translator of the personnel department and has been promoted repeatedly. According to the records in the Archives of the Qing Palace, Cheng Wai, the father of Cixi, was a calligrapher in the 11th year of Daoguang (183 1), and was certified as a second-class calligrapher in the 14th year of Daoguang (1834). Nineteen years (1839) was a calligraphy style with eight styles. In the twenty-third year of Daoguang (1843), it was re-examined as the first-class calligraphy of the official department. Twenty-six years (1846), he was transferred to the position of director of the department of literary selection of the official department. Twenty-eight years (1848) and twenty-nine years (1849), because of the first-class inspection results, they were received by the emperor and released to the government-level office. In April of the same year, it was appointed as Guisui Road in Shanxi. Xianfeng two years (1852), transferred to Anhui Hui (Huizhou) Ning (Ningguo) Chi (Chizhou) Tai (Taiping) Guang (Guangdezhou) Road. At the beginning of the third year of Xianfeng (1853), Taiping Army attacked Anhui, and Cheng Wai took refuge in Zhenjiang, Jiangsu, and was dismissed. Zheng Hui died in Zhenjiang on the third day of June in the third year of Xianfeng (1July 8, 853). [ 1]