1.   Title: Mother Says I Must Neither Talk, Listen nor Look
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
2.   Title: 20th anniversary of Japanese constitution
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
3.   Title: The Tange-Lashley Co.
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds