Roy Wood Sellars (1880-1973) was the father of Wilfrid Stalker Sellars and a notable American philosopher. This series is divided into six subseries that document various aspects of his personal and professional life. The subseries include biographical information, correspondence files, financial records, handwritten notes, manuscripts, and manuscripts by other authors. While these documents provide some information on his personal life, they concentrate on Roy Wood Sellars' contributions to the philosophical community's professional literature. Covering the topics of naturalistic metaphysics, philosophy of mind, materialism, naturalism, secular humanism, socialism, and relativity, this series contains drafts of published and unpublished articles and books, and handwritten notes relating to the formulation of his philosophical ideologies. These materials are further described in the extensive subseries scope and content notes.