Sous-fonds arranged in the following series: Correspondence, Financial and Legal, Biography, Programmes, Publications, Press Clippings, Manuscripts, Sound recordings, Miscellaneous, Photographs, Performance Notes and Remarks, Musical Education and Workshops, Inspirations, Journals and Date Books, and Audio Visual.

Sous-fonds consists of scrapbooks of photographs, clippings, and leaflets assembled by Coulthard's mother, Jean Robinson Coulthard, between 1898 and 1929, documenting her career as a music teacher as the recital performances of her children and students. Sous-fonds also includes scrapbooks compiled by Jean Coulthard's sister Margaret, family photographs, and an album compiled by her father, Dr. Walter Coulthard, depicting the Rossland area (ca. 1902).