Symeon Du

In 1904, he graduated from the missionary school at the Russian Orthodox Mission in Beijing and for several years served as a psalm reader and catechist in the Yung-ping-fu area (Peitaiho).

In addition to his duties as deacon, he served as a missionary, the treasurer, and manager of the parish's office in Harbin.

With the arrival of many refugee Christians from Russia in 1919, he was active in publishing Russian textbooks for the schools in Harbin.

His life as a missionary took him to many cities in China, including Shanghai, Hankou, Haimen, Kaifeng, Weihou, and Mukden, as well as to localities in Manchuria.

On September 16, 1941, he was ordained to the priesthood and made priest-in-charge of the St. Innocent Mission Church in Tianjin.