Sir William Dixson offered in 1919 to leave his collection of pictures, manuscripts and other materials relating to Australiana and the Pacific (particularly early European exploration) to the library; his offer was accepted in 1924. After a series of delays construction began on a new wing to house the collection, which was opened on 21 October 1929. Dixson was the guest of honour at the opening of an exhibition to mark the centenary of Mitchell's birth in 1936, and also paid for the bronze doors added to the Mitchell building in 1942, when extensions were added. His entire collection passed to the library after his death in 1952.
