Fonds consists of material related to the art, research, and writing of Hilary Stewart. The bulk of the material is related to the production of her books on the culture and art of the First Nations peoples of the Pacific Northwest. The remaining material relates to illustrations that she did for publications by other authors, a small amount of material done for personal use, and collected research and ephemera that does not appear to be related to one specific publication. Material includes original illustrations, collected research and notes, book drafts and pre-press materials, photographs, correspondence, and collected memorabilia.

The material has been arranged into three series:
1 - Books
2 - Illustrations and other artwork
3 - Collected research and ephemera

Collection consists of ten audio reel tapes and eight audio cassette tapes with recordings of stories, obtained by Karen J. Clark and Tahltan community members in the 1960s, 70s, and 80s. Along with Tahltan Native Studies Committee members, including Rose Quash, Rachel Joseph, Anne Gleason, and Judy Joseph, Karen J. Clark traveled around the Telegraph Creek area to record stories of the Elders and procure photographs. This work became the "Tahltan Native Studies" book, produced in 1976.

Documentation includes a lists of recordings with tape descriptions, a short biography of Karen J. Clark, and letters and documents related to her awards and publications.

Textual materials include three "Tahltan Native Studies" books, two sets of accompanying job cards, one set of activity cards, one set of photograph cards, and a course outline. The collection also includes the three book set "Sun, Moon and Owl" and the accompanying reading workbook and teacher's guide. "Sun, Moon and Owl" was written by Karen J. Clark, with grant funding from the B.C. Teacher's Federation, and published in 1975.