The fonds includes the following series: correspondence, theses, speeches, lecture notes, printed materials, clippings, photographs, student memorabilia and manuscripts. Photographs are stored separately.

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.

Previously known as the "Ethel Johns Research Collection", the fonds consists of records generated during Street's writing of the biography of Ethel Johns. It includes correspondence (1969-1974) with publishers and the Canada Council which funded the project; transcripts of interviews with students, friends and associates (1969-1970); copies of Johns' addresses and publications (including portions of an unfinished autobiography); and draft manuscripts for the book "Watch-Fires on the Mountains".