Fonds consists of architectural drawings (1961) and 2 photographs forming part of a project prepared for the United Nations for low-cost asbestos roof-tiling. A four-page application (1967) for low-cost roofing is also included. Ortega's personal library (713 cm) also comprises part of the fonds. These books and periodicals relate mainly to Ortega's professional interests such as low cost housing, building materials, water and sanitation, the environment and energy. 287 slides relate to Ortega's on-going concerns on lost-cost housing, building materials, construction methods and alternative sources of energy.

"Dessins architecturaux, 1961, 46 dessins." Les dessins faisaient partie d'un projet réalisé pour les Nations unies et portant sur des tuiles de toit en amiante à faible coût. Ce matériel n'a pas été décrit.
"Photographies, 1961, 2 photos." Ces photos se rapportent au projet mentionné ci-dessus. Ce matériel n'a pas été décrit.
"Activités architecturales, 1967, 2 cm." Le dossier contient un formulaire de quatre pages de demande de toit à coût modique. Il n'a pas encore été décrit.
"Bibliothèque personnelle, s. d., 7,13 m." Ces livres et Périodiques se rapportent avant tout aux intérêts professionels d'Ortega tels l'habitation à coût modique, les matériaux de construction, l'eau et la salubrité, l'environnement et l'énergie. Matériel en cours de traitement.
"Diapositives, s.d., 287 diapositives." Celles-ci illustrent les projets de recherche d'Ortega sur l'habitation à coût modique, les matériaux et les méthodes de construction et les sources alternatives d'énergie. Ce matériel n'a pas encore été traité.

The fonds contains photographs, drawings, textual records, and other material used by France Gagnon Pratte as the basis for her 1987 book, "Country Houses for Montrealers, 1892 - 1924: The Architecture of E. and W.S. Maxwell". There are also records related to a book project on the architecture associated with the Canadian Pacific Railway Line.

The fonds chiefly reflects Gordon Edwards' professional practice, both in consortium with various firms and as an individual practitioner, and also reflects his teaching career at McGill University and the Université de Montreal, however there are some files of a personal nature. Correspondence, lighting design proposals, and their accompanying documentation (such as architectural plans) are included. A majority of the files representing his professional projects contain the same types of documents: architectural plans, lighting fixture schedules, illuminance grids, and manufacturer's literature and brochures. In addition, there are some miscellaneous photographs both of professional and personal nature, negatives, and fabric samples.

The correspondence is both personal and business-related; most of it deals with his practice and various projects and proposals, but there is also correspondence relating to legal and banking matters. There are letters from Prime Minister Pierre Elliot Trudeau and Prime Minister Brian Mulroney. There is also correspondence from noted architect Moshe Safdie and Canadian War Museum architect Raymond Moriyama.

Plans include lighting designs for the Supreme Court of Canada, the Outremont Library, and the McCord Museum expansion project.