The documents in this series include posters for concerts, several of which were given on Wolff’s instruments, as well as drawings and sketches of Wolff organs. These documents are not rolled like the organ plans in Series 1 but rather are spread flat

The Pamphlets series includes programs, program notes, and general publicity for several of the organs in Wolff’s opus. These are stored in folders and divided into three subseries: documents associated with Wolff organs, publicity for Wolff & Associés, and pamphlets for non-Wolff instruments.

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.

The photographic negatives are divided into three subseries: Wolff organs with opus number, Wolff organs without opus number, and non-Wolff organs.

The maquettes in this series are various sizes of three-dimensional models of organs.

This series contains French language reports prepared by the Ministère des Affaires culturelles du Québec, Direction régionale de Montréal, Direction du Patrimoine, by various authors. Each report is typescript and contains black and white photographs.

This series contains various temperament specifications.

This series contains various guides, rules and objects presumably used in the Wolff & Associés workshop.

This series consists of unreleased and released audio recordings of Bernard Gagnon music and several interviews.

This series consists of texts written by Bernard Gagnon and an undated, un-authored biographical essay.