The papers of prominent Philadelphia lawyer and philanthropist John Frederick Lewis span the dates 1882 to 1932 and include letterbooks, correspondence, advertising brochures, legal documents, and ephemera. The papers primarily document the legal business of Lewis through his work at the firm Lewis, Adler & Laws, but also reflect social and domestic affairs of John Lewis and his wife, Anne Baker Lewis, as well as cultural interests, through development of personal collections and institutional affiliations.