Fonds comprises editorial reports and notes made by Jefferys on works by Thomas Chandler Haliburton. Also included is a letter from Robert Glasgow, Managing Director of The Publishers Association of Canada, outlining the agreement of editorial and illustration work undertaken by Jefferys on a multi-volume series of the works of Haliburton. In addition, there is a typescript of a talk written by Jeffreys regarding his illustrations for the project.
Fonds consists of manuscripts and proofs of Budge Wilson's books and short stories; correspondence with publishers, students, and teachers; publicity material; photocopies and clippings of reviews, profiles, and notices regarding awards and appearances; diaries; recorded radio interviews; and an assortment of other documents created and collected by the author throughout her writing career. The fonds also contains materials relating to the adaptation of Wilson's novel "Before Green Gables" into a Japanese animated television series.