Consists of photograph albums, military service records, training material related to the military and medical career and travels of Douglas Sallis.

The fonds is divided into 8 series:

1. Merchant Marines

2. Education

3. Medical Practice

4. Canadian University Service Overseas (CUSO) Trip: Papua New Guinea

5. Around the World Trip

6. Photographs

7. Personal

8. Miscellaneous

Consists of material gathered and created by Margaret Sallis (Willms) during the course of her time as a Mennonite immigrant to Canada, as well as information about her life created after death. Willms was fluent in German and served for a time as a contact for German prisoners of war who were held in France after WWII ended. These letters form the core of the fonds.

The fonds is organized into three series:

1. German POW correspondence
2. Personal material
3. Biographical material