Howard K. Elcock
From The Arthur Conan Doyle Encyclopedia
Howard K. Elcock was a British illustrator. He worked for The Strand Magazine, Illustrated London News and Punch. He also designed posters for the Underground Group between 1928 and 1931, and also posters for Shell and the LNER (London & North Eastern Railway) during the 1920s.
Between 1919 and 1926, he did 50+ illustrations for Arthur Conan Doyle's works.