1.   Title: A Happy New Year
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
2.   Title: "Bucking Bronco Calgary, Alta."
Institution: University of Saskatchewan Libraries Special Collections
Fonds/Collection: Canadiana Pamphlets Collection
3.   Title: Caligraphy
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds
4.   Title: House Among Trees
Institution: University of Saskatchewan Archives
Fonds/Collection: Hans Gruen fonds