[2] Deprimoz attended the college at Rumilly for his secondary education, then at the age of seventeen entered the seminary of the White Fathers at Binson.
He took the habit at Maison-Carrée on 4 October 1903 and pursued his studies at Carthage, interrupted by military service, until being ordained a priest on 28 June 1908.
[3] Déprimoz was first assigned to the mission of Unyaneyembe in the Tabora Region of what is now Tanzania, but could not handle the climate.
[5] Déprimoz was appointed Titular Bishop of Mathara in Proconsulari and Coadjutor Vicar Apostolic of Ruanda on 12 January 1943.
[1] He inherited a difficult situation partly caused by missionaries who had been indiscriminate in baptizing people who were drawn to the church during the famine of 1933–35.
He made changes to religious teaching practices and gave fresh emphasis to the sanctity of the Sabbath.
[4] Déprimoz was a strong promoter of the Catholic press, pushing up the circulation of the Kinyamateka, and supporting the launch of the Hobe magazine for young readers in Christmas 1954.