This series consists of reports compiled by the Sales Investigation Department and papers related to its operation, bundles of papers of both a business and personal nature, research papers for articles that W.B. Evison worked on and submitted.
There are some papers (WBE/2/2/1) included in this series that are subsequent to W. B. Evison's time in the Sales Investigation Department. They have been left here in order to preserve the original order in which they were deposited.