The State Library of New South Wales in Sydney holds 32 sketchbooks which cover von Guerard’s twenty-eight years in Australia and also the period of his early travels in the Rhineland and Italy and his return to Europe after 1881. The drawings include pencil sketches, detailed pen and ink or pencil drawings, and a few with colour added and include works done on scientific expeditions with Alfred William Howitt and Georg von Neumayer, the meteorologist. The sketchbooks cover Italy and Germany, 1835–1852, Australia, 1854–1891, and the English sketchbook, 1891–1900.