Born in
Horhausen, Westerwald, Georg Stenz was the son of the elementary school teacher Jacob Stenz and his wife Maria (née Dasbach). He was the oldest of 7 children (2 boys and 5 girls) of which only he and his sister Maria (born 1878) lived to adulthood. He attended the elementary school in Horhausen, where his father was a teacher from 1875 to 1880. From 1880 to the autumn of 1881, he was given private lessons by a chaplain in Horhausen, possibly for health reasons. In the autumn of 1881, he entered the second year (quinta) of a secondary school (gymnasium) in
Montabaur where he lived in a residence (konvikt) of the
Diocese of Limburg. In February 1887, he requested admission to the mission Divine Word Missionaries in Style, where he continued his education from 25 April 1887, onwards in the missionaries' secondary school ("Styler Lyzeum"). He graduated from the Styler Lyzeum (matura) after two years. Since the degree from the Styler Lyzeum was not recognized by the German state, he also gained a high-school diploma from the Montabaur secondary school in 1889 as an external student. He became a novice and studied theology at the St. Gabriel mission house of the Divine Word Missionaries in
Maria Enzersdorf to the southwest of Vienna. He made his temporary vows at St. Gabriel on 21 November 1891, and was ordained as a priest in the same place on 25 June 1893. He was sent on his mission to China on 17 September 1893, together with Joseph Hesser (1867-1920) and Josef Schneider (1867-1896) who had been ordained as priests with him. The three traveled to
Genoa via Cologne, Basel, Luzern, and Milan. On 25 September 1893, the three missionaries boarded the steamship Bayern of the shipping company
Norddeutscher Lloyd in Genoa. After a voyage via Naples, Port Said, Suez, Aden, and Colombo, they arrived in Hong Kong on 25 October. After a few days' stay in Hong Kong, Stenz traveled on the Bayern to Shanghai, where he arrived on 29 October 1893. ==Activities as a missionary==