- FondsPP - Siegfried Janzen fonds
- PartVolume 5461 - Textual records 3
- 6 more...
- File7 - Correspondence with Mennonite Life regarding an article on Janzen's activities in Gronau, Germany
- File8 - Correspondence to and from Siegfried and Margaret Janzen while at Bethel College, Kansas
- File9 - Correspondence regarding church and young people's work while Siegfried Janzen was with the Vineland Mennonite Brethren Church
- File10 - Correspondence with the Mennonite Brethren Board of Foreign Missions
- File11 - Letter by Sigfried Janzen regarding his church work in New Brunswick