Series consists chiefly of architectural photography from Italy and France, featuring building exteriors and exteriors and details such as doorways, crests, and capitals. Photographs are mostly undated. One file contains photographs of public buildings in the United States and one photograph of a Royal Canadian Mounted Police garage in Montreal Quebec.

This series consists of photographs taken of Bernard Gagnon.

The Photographs series contains photographs of church organs, professional photos of Donald Mackey alone and with others. Also includes correspondence from Helen Mackey to Cynthia Leive.

The photographs in the Nobbs archive document some of his architectural projects including urban domestic architecture, renovations to the interior of Christ Church Cathedral in Montreal, McGill's MacDonald Engineering Building, a proposal for Winnipeg City Hall and a proposal for a war memorial at Lille in France. Documented are plans, exteriors and interiors, models, buildings under construction and perspectives. Included are five photograph albums.

This series is composed of photographs relating to Sharma and other prominent figures in his life, which include Ingeleier Kemp Asen and Caroline Coombes. Most of the photographs of Sharma are from his academic endeavours.

The photographs in this series cover the several stages of the organ-building process. This series includes both colour and black-and-white images of the construction of a given organ at Wolff’s atelier, the installation of the organ, as well as concerts, dedications, and social events at or around the time of the organ’s installation.

This series consists of photographs with Sonde event number indicated if known.