Manuscript book of paste-ups for Cities in the Sun, which was published as a book in 1964. This was the result of the Royal Australian Institute of Architects (RAIA) Sisalkraft Research Scholarship awarded in 1963, in which Trotter spent three months in subtropical regions of the world to develop knowledge relevant for Brisbane architecture and climate.

Drawings for the Catholic Cathedral of St Joseph at Rockhampton by Hennessy, Hennessy & Co and Ian Ferrier, including floor plans, elevations and joinery details.

Forty-four architectural drawings for the proposed College and Brother's Residence at Dalby and later extensions and alterations including sketch plans, working drawings and joinery plans.

Sixty architectural drawings for the Church of the Holy Spirit at Auchenflower including a measured drawing by Corbett & Ryan Architects, with the remaining plans by A Ian Ferrier and Associates including nine sketch plans, twenty-three working drawings and twenty-six additional drawings including joinery plans, stonework details, and lettering plans.

Architectural drawings for St Mary's Cathedral, Port Moresby, including 2 measured drawings and one plan of additions and alterations by John R. Wild Architect, 13 sketch plans and one site plan by A. Ian Ferrier, and 17 working drawings by A. Ian Ferrier and Associates in association with John R. Wild. Drawings include floor plans, elevations, sections, structural plans and joinery details.

Architectural drawings for the Priest's Residence for St Columban's Mission, Toowong (now demolished), including sketch plans, working drawings and joinery plans.

Fifteen architectural drawings for St Finbarr's Church, Quilpie, by A. Ian Ferrier and Associates including sketch floor plan, section and perspectives, working floor plans, site plans, elevations, sections and glazing schedule, and undated joinery details and elevations.

Twenty-six architectural drawings for St Columba's Church and Presbytery at Charter's Towers for Reverend A Ryan including sketch plans, floor plans, site plans, elevations, sections, joinery plans, roof plans and electrical layouts.

Material relating to the University of Queensland Athletics Club. Includes speeches, biographies, bound typescript of the history of the club and minute books.

As an extension of the University of Queensland Department of Architecture's public programs in 1983 to 1985, Don Watson organised a fortnightly public lecture program called Architecture is a Community Art. The program had local, interstate and international speakers and attracted large audiences. These lecturers were conducted at the Community Arts Centre, 109 Edward Street Brisbane. This series includes correspondence, notes, biographical information for some of the presenters, financial data, posters and flyers for the lectures.