Anthony Boucher's Sherlockiana Collection came to the library through a donation by the Scowrers and the Molly Maguires, a local Sherlockian group. First editions, foreign translations, criticism, and periodical and biographical material relating to Arthur Conan Doyle and Sherlock Holmes are included among these 250 volumes.

Contains manuscript materials including personal papers, correspondence, scientific and literary articles, and newspaper clippings related to Doyle's publications. The collection also includes photographs taken by Doyle during the Boer War, World War I, and his visits to Switzerland and the United States.

Arthur Conan Doyle Collection: One of the world's foremost collections of library materials devoted to the life and work of Sir Arthur Conan Doyle. Much of the collection is devoted to Doyle's most famous character, Sherlock Holmes. The Collection is housed in a room evoking 221B Baker Street, where people can browse along open shelves in a manner unusual in a special collection.

The Arthur Conan Doyle Collection: This is the private collection of Richard Lancelyn Green bequeathed to the City of Portsmouth after his death. The extraordinary collection of over 14,000 items contains Conan Doyle related books, papers and assorted memorabilia. Appointments required to view some of the materials.

The Library has around 60 letters from Sir Arthur Conan Doyle as well as the manuscript for "The Adventure of the Illustrious Client." The manuscript for "The Haunted Grange of Goresthorpe" is located in the Blackwood Collection, and some of Conan Doyle’s correspondence can be found in the John Murray Archive.

Contains over 2,100 items including family papers bequeathed by Sir Arthur Conan Doyle's daughter, Dame Jean Bromet, as well as items secured during an auction of Conan Doyle manuscript materials. The collection contains some rare unpublished items by Sir Arthur Conan Doyle including his first unpublished novel "The Narrative of John Smith".

The Huntington Library holds nearly 200 individual publications by Sir Arthur Conan Doyle including rare Spiritualist publications, newspaper articles, and manuscripts.

The Baker Street Irregulars Archives includes primary materials regarding the history of The Baker Street Irregulars (BSI) and its members. This consists of correspondence, photographic and audio materials, manuscripts of historical documents, biographical material, newspaper clippings, and magazine articles. They are always seeking donations of BSI-related materials to enhance their collection. The BSI Trust www.bsitrust.org is the organization that supports and oversees the BSI Archives.

C. Frederick Kittle Collection of Doyleana: The focal point of this collection is the extraordinary array of manuscripts and first editions from Doyle and members of his family. There are hundreds of first editions, representing over 90% of Sir Arthur Conan Doyle's life's work. In addition, more than 150 letters by Doyle and 50 by other members of his family.

The Mary Shore Cameron Sherlock Holmes Collection contains over 3,000 items of Sherlockian interest including a nearly comprehensive collection of Sherlock Holmes first editions, early pastiches and parodies, foreign language editions, seminal Sherlockian research, and manuscript materials.

First and other editions of Sherlock Holmes novels and stories by Sir Arthur Conan Doyle, Sherlockiana, and historically set mystery novels collected by white North Carolinians Charles J. Ragland and Nancy Ader Ragland in the twentieth and early twenty-first centuries. The collection contains books; ephemera; pamphlets; newspapers; magazines; serials, newsletters, and other publications of societies dedicated to Sherlock Holmes including the Sherlock Holmes Scion Society; and memorabilia including a novelty cap and pipe and a menu from the Sherlock Holmes Restaurant in London, United Kingdom. Publications include parodies and pastiches, biographies, novels, plays, handbooks, atlases, compendiums, and literary criticism and interpretation. Historical mystery novels are chiefly first editions of popular titles written by American and British authors and published in the late twentieth and early twenty-first centuries. Authors include Anne Perry, Rosemary Rowe, Margaret Frazer, and Spanish novelist Arturo Pérez-Reverte. Some editions are signed by the authors.

The Hobbs Collection, numbering over 8,000 volumes, contains translations of the Holmes canon in 108 languages both natural and artificial, from Afrikaans to Zulu, as well as non-Roman English alphabets such as Braille, Shorthand, Morse code, and even Dancing Men!

This small collection of 18 items, consists of letters from Sir Arthur Conan Doyle and fragments of Sherlock Holmes stories, as well as correspondence from early Sherlockians such as Christopher Morley, Howard S. Mott, Edgar W. Smith and Vincent Starrett.

Jack Powell Collection of Sherlock Holmes: Contains nearly 600 items related to Sherlock Holmes including radio scripts and radio programs, correspondence, photographs, information on the “Afghanistan Perceivers” society, and miscellany.

Papers of Sir Arthur Conan Doyle: Materials in this collection include notebooks, manuscripts, photographs, and magazines related to the life and works of Sir Arthur Conan Doyle. The Royal College also houses the Joseph Bell Collection.

Parker Family Sir Arthur Conan Doyle Collection: Donated by Dr. Philip Parker of West Bloomfield, Michigan, this outstanding collection features rare books, periodicals, artwork, and other materials related to Sir Arthur Conan Doyle and Sherlock Holmes.

A small collection of approximately 50 titles mostly containing non-Sherlockian works of Sir Arthur Conan Doyle including his historical novels, some nonfiction/spiritualist works, and short stories. Of note are several translations of the Sherlock Holmes stories in German, French, Russian, and Swedish.

Sherlock Holmes Collection: This unique collection contains stories, information about Sir Arthur Conan Doyle, photographs, newspaper clippings and journals. The Collection is held at Mayfair Library, but is accessible by appointment only.

The Athenaeum has Sherlockian holdings donated from the private collections of Baker Street Irregulars A. Carson Simpson, Herman Beerman, and other Philadelphia area collectors.

The Sherlock Holmes Collection constitutes the world’s largest gathering of material related to Sherlock Holmes and his creator. The Collections consist of over 60,000 items including books, journals, and a wide variety of other forms through which the transformation of the Holmes character from the printed page to a cultural icon can be traced.

This collection contains a variety of ephemeral items related to the Sherlock Holmes stories and character created by Arthur Conan Doyle. Included are cigarette cards, postcards, greeting cards, and other collectibles.

Much of the material concerns spiritualism, spirit communications, mediums, séances, psychics, and spirit photography, often with transcripts describing events.

Also present are some personal and financial records for Doyle as well as papers of various Doyle and Leckie family members, chiefly his wife Lady Jean Leckie Doyle and his son Denis Percy Stewart Conan Doyle. Correspondence from and about Harry Houdini is also included.

Additional related holdings at the Harry Ransom Center include: two Sherlock Holmes manuscripts, and a pair of spectacles owned by Doyle.

A small amount of personal papers, and an affiliated Sherlockian library. This collection contains materials dealing with the history and literature of the character of Sherlock Holmes.

The New York Public Library contains a number of works by Sir Arthur Conan Doyle including several of his manuscripts as part of The Henry W. and Albert A. Berg Collection of English and American Literature.