Picture book
In 1938, the American Library Association (ALA) began presenting annually the Caldecott Medal to the most distinguished children's book illustration published in the year. The Caldecott Medal was established as a sister award to the ALA's Newbery Medal, which was awarded to a children's books "for the most distinguished American children's book published the previous year" and presented annually beginning in 1922. During the mid-forties to early fifties, honorees included Marcia Brown, Barbara Cooney, Roger Duvoisin, Berta and Elmer Hader, Robert Lawson, Robert McCloskey, Dr. Seuss, Maurice Sendak, Ingri and Edgar Parin d'Aulaire, Leo Politi, Tasha Tudor, and Leonard Weisgard.
David D. Caldwell
Judge Caldwell – an honorary title given to him by his philatelic friends – was very involved in the organizing of stamp collecting in the Washington, D.C. area. In 1937 he was responsible for organizing the National Stamp Conference, and, in 1940, he was chairman of the Postage Stamp Centenary Convention and Exhibition, which celebrated the centenary of the world’s first postage stamp, the English penny black which was issued in 1840, an event that could not be celebrated internationally in England at that time because of British preoccupation with the start of World War II. Judge Caldwell was also one of the founders and a trustee of NAPEX (National Philatelic Exhibition) which, since 1950, held philatelic exhibitions in Washington, D.C.