Fonds consists of personal correspondence, newspaper clippings and manuscripts; as well as, memorial tributes, cards and letters of sympathy pertaining to the passing of Sonthoff. The fonds is arranged in the following series: Correspondence, Essays and Criticisms and Memorial Tributes.

Fonds consists almost entirely of materials created or acquired by Gordon Elliott throughout his life and career and includes:
• The manuscripts for his historical writing.
• Research materials.
• Personal correspondence.
• University notes and lectures.
• Newspaper clippings.
• Public lectures.
• An audio recording.