The Susan Grenz Collection contains nineteen scans of images relating to the Gottlieb Grenz family and their farmstead. There is one 4 x 5 print of a photograph of Gottlieb and Christina Grenz, c. 1910. The image features this photograph in an ornate circular frame with a floral motif.

Eighteen scans of images taken on one mile north of Hazelton, North Dakota are also included in this collection. These were scanned from the original photographs, which were taken in 1963. The images concern threshing and farming activities. Some of the identified subjects include Harry Grenz, Doug Grenz, Monte Humann, LeRoy Humann, and Arthur Humann. These photographs are maintained by GRHC in digital format and can be accessed upon request.