Caldecott Medal
The award is named for Randolph Caldecott, a nineteenth-century English illustrator. Rene Paul Chambellan designed the Medal in 1937. The obverse scene is derived from Randolph Caldecott's front cover illustration for "The Diverting History of John Gilpin" (Routledge, 1878, an edition of the 1782 poem by William Cowper), which depicts Gilpin astride a runaway horse. The reverse is based on "Four and twenty blackbirds baked in a pie", one of Caldecott's illustrations for the nursery rhyme "Sing a Song of Sixpence".
Caldecott Medal
Robert Lawson alone has won both a Caldecott Medal and a Newbery Medal, the 1941 Caldecott for "They Were Strong and Good" and the 1945 Newbery for "Rabbit Hill". He both wrote and illustrated both books.