Architectural drawings, photographic negatives, slides and prints, architectural project files, personal papers and newspaper cuttings relating to John Simpson, primarily from his time with John Simpson Associates.

Vibert McKirdy Brown worked as an architect in North Queensland in the first half of the 20th century. He drew plans for churches, schools, presbyteries, residential houses, hotels, stores, the Atherton hospital and silos for the Atherton Tablelands Maize Board. Most of the buildings were constructed. Some have since been demolished. Two have been heritage listed: the 1930s extension to the Bolands Centre in Cairns and Exchange Hotel in Mossman.

Seven audiocassettes of interviews: Eddie Hayes, Louis Hailey, Don Winsen, Stuart McIntosh, James Birrell and Judith McKay. Architects Eddie Hayes, Louis Hailey, Don Winsen, Stuart McIntosh, and James Birrell interviewed by Don Watson and/or Alice Hampson. Final interview is Sue Tate interviewing Judith McKay regarding exhibition 'The Flower Painting of Ellis Rowan'.

Correspondence, photographs, negatives, slides, newspaper cuttings, microfilm, maps, architectural drawings, sketches, draft manuscripts, public and private projects.