The Derrick mss., undated twentieth century, consists of four watercolors for dustjackets of three novels by Compton Mackenzie, published between 1913 and 1919.
The Keene mss., 1880-1890, consists of letters from Charles Samuel Keene, 1823-1891, a humorous artist for Punch from 1851-1890, who also made drawings for other periodicals including the Illustrated London News and Once a Week and for various books.