This archive contains a copy of the diary of Warren H. Lewis (1895-1973), the elder brother of C.S. (Jack) Lewis. The complete diary covers a span of fifty years, and fills twenty-three hand-written "volumes." Also included at the end of the archive are the seven "Travel Journals" that Warren kept while vacationing in England and Ireland.

This archive contains article clippings, correspondence, and other inserts which have become detached from the Warren H. Lewis Diaries.

This archive contains personal letters between  Warren H. Lewis (elder brother of C.S. Lewis) and various correspondents.

This archive contains personal papers from Warren H. Lewis, brother of C.S. Lewis, as well as inserts removed from the Boxen manuscripts and the Lewis Family Papers or Memoirs of the Lewis Family (1850-1930). A draft of C.S. Lewis: A Biography edited by Warren Lewis is also included.

The maps and books contained within this archive belonged to Warren H. Lewis. These items contain information about areas in England, Wales, Scotland, and Ireland where Warren Lewis and his brother C.S. Lewis went on walking tours. There are handwritten markings on several of these items. The original maps are stored separately from the research copies of this archive.