Fonds consists of the papers of a group of concerned citizens of Beaver Valley, which grew into the Beaver Valley Heritage Society, and the papers, reports, minutes, publications and other material of the Beaver Valley Heritage Society. Fonds is comprised of the following series: Administrative papers; Background reports; Articles and papers; Newspaper clippings; Maps; Graphic material; Beaver Valley Concerned Citizens' Group, 1975 - 1982; Beaver Valley Heritage Society.

Collection consists of audio recordings of interviews with individuals who were active in the Toronto visual art community during Robert Markle’s lifetime, art historians, and friends and family of Robert Markle. Collection also includes two notebooks containing transcriptions and notes. Interviews were created and used in the process of researching Blazing Figures: A Life of Robert Markle. Collection includes interviews with Harvey Cowan, Jack Foster, Anna Hudson, Avrom Isaacs, Craig Kenny, Mitchell Maracle, Susan Maracle, Marlene Markle, Tim Noonan, Gordon Rayner, John Reeves, Richard Gorman, Ruth Grogan, Nobuo Kubota, Don Obe, Helen & Marty Poizner, Michael Sarrazin, Peter Stollery, Hana Trefelt, Michael Snow, Patrick Watson, Paul Young, Jack Aldersley, Kenny Baldwin, Patricia Beatty, Laura Berman, Sheryl Wanagas, Dennis Burton, Vera Frenkel, Ray Hanson, Tom Hill, Jerri Johnson, Rae Johnson, Emmett Maddix, Scott Townson, Murray McLauchlan, Stephen Williams, Gordon Lightfoot, Dennis Reid, Peter Goddard, and Diane Pugen. The collection is arranged in a single series.