Sidney Paget is the most famous of all illustrators of the Canon. He illustrated The Adventures of Sherlock Holmes, The Memoirs of Sherlock Holmes, The Hound of the Baskervilles and The Return of Sherlock Holmes for the Strand Magazine. The art editor of the Strand wanted Paget’s younger brother Walter to do the artwork, but the commission was sent in error to Sidney, who used Walter as a model for Sherlock Holmes.
Here are some of them:
You can find the rest of illustrations in this link: http://ignisart.com/camdenhouse/gallery/1-paget.htm