Much of the material in this collection was prepared for a series of residences and plans to be published in the Sunday Mail. Little material can be positively identified. Some of these items have numbers on the reverse which appears to signify that these were plans for actual jobs undertaken by Da Costa. A distinct Spanish influence can be discerned in many of the houses. Many of the plans bear the initials A or B, A meaning wooden construction and B denoting brick construction.

Architectural plans of residential and commercial buildings. Also includes bills of quantities, client files, specification files, job files, miscellaneous papers of A.B. Wilson and R.M. Wilson, and card index of plans by plan numbers, job numbers, and client names. Includes several plans by Alfred Banks.
Also includes rare poster "Victoria Skating Rink, Sandgate". Includes plan of 'University site, St. Lucia. Proposed design', by R.W.J. Hawken, 1929.
Professor Hawken and Alexander Wilson were members of a committee established in 1921 to determine a site for the University of Queensland.

Correspondence, poetry and prose manuscripts, newspaper cuttings, miscellaneous items.

Collection of photographs, mostly Queensland, circa 1900-1915. Views of Brisbane and other Queensland towns, also some photographs of Sydney, Melbourne, Adelaide and Perth.

Includes reports, minutes, programmes, scripts, correspondence, posters, photographs, production files. Also material relating to La Bamba, La Byte (Youth Arts), Backbone.

Research material used for The recollections of Geoffrey Hamlyn and Henry Kingsley; papers relating to the establishment of a pharmacy course at the University of Queensland.

Letters, chiefly to Vivienne Rae-Ellis, related to "Queen Trucanini"; incoming correspondence; manuscript drafts of "Brown sugar", "Queen Trucanini", "Nin and the Scribblies", and "The heart of the continent"; notes and research material.

Lectures, typescripts, newspaper cuttings and papers relating to the Australian Labor Party, trade unionism and the anti-Vietnam War movement in the 1960s and 1970s.

Notebook containing a list of playscripts on loan 1956-1959; playscripts from the library collection.

Drafts of short stories, playscripts and novels, correspondence, newspaper cuttings and copies of printed sources containing material about Ron Tullipan, notebooks, research materials, photographs, album of newspaper cuttings and other memorabilia compiled by Vi Tullipan.