What are the names of Yan Jingming's three sons

According to public information, Yan Jingming has three sons. Their names are Yan Nailin, Yan Naizhu and Yan Naidong.

-Zi: Yan Nailin, who was the official book of Taichang Palace, was the prime minister of Xitong Railway Company (the railway organization established in An in the late Qing Dynasty) in the first year (1909).

—— Zi: Yan Naizhu, the second scholar in the ninth year of Guangxu (1883), has served as the academician courtyard, director of the ritual department, alternate road in Shanxi, and prime minister of Shaanxi Chamber of Commerce.

-Zi: Yan Naidong.