A large number of photographs and negatives taken by Loke Wan Tho on his ornithological expeditions to the Pacific, Asia and Europe in the 1950s and early 1960s, as well as papers, books and maps.

About 350 photographs, including glass negatives, and a small number of pencil sketches, majority depicting paddle steamers sailing or moored on the Murray or Darling rivers.

Over 32,000 items, including rare books, pamphlets, maps, and ephemera, covering topics such as Oceania, transport, and literature. Compiled by Sir John Alexander Ferguson, it is a key resource for Australian history and bibliography.