Numerous certificates for meritorious architectural work, a Diploma in Architecture from The University of Queensland, certificates of election as an Associate, Fellow and Life Fellow of the Royal Australian Institute of Architects (RAIA), and as an Associate of the Royal Institute of British Architects, and a certificate of appointment as an Officer in the General Division of the Order of Australia (AO).

Correspondence originally filed separately from job files. Some of this material relates to projects Gibson was involved in, such as the redevelopment of ANZAC Square and the redevelopment of the Tattersall's Club, both in Brisbane. Some of the correspondence is personal.

Office diaries containing details of contacts and appointments, and brief notes about work-related matters

Architectural drawings relating to government, educational, residential, commercial and ecclesiastical jobs undertaken by Robin Gibson and Partners throughout the life of Gibson's practice in Brisbane. While the vast majority of the drawings are the work of Gibson, his partners and staff, some drawings were created by engineering firms and architectural artists commissioned by Gibson.
Key to creators' initials:
RFG/RG - Robin Findlay Gibson
FR - Finn Rasmussen
CHC - Col Christ
AK - Alan Kirkwood
WSH - William (Bill) S Heather
PW - Paul Wallace

Administrative records relating to architectural design and consultancy jobs undertaken by Robin Gibson and Partners. Records include correspondence, design briefs, specifications, copies of contracts, costings, concept sketches, architectural drawings, reports, submissions and some photographs. Major projects documented in this series include the successive stages of the Queensland Cultural Centre, the Queensland Conservatorium of Music at South Bank, restoration of and extensions to St Stephen's Cathedral, and the Australian Parliament House design competition. The series also contains files of newspaper and journal articles relating to Brisbane architecture and projects for which Robin Gibson and Partners was responsible.

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.

Photographs taken by Stephen Trotter of the Student Union building at The University of Queensland, St. Lucia, which was designed by Fulton, Trotter Architects.

Photographs taken by Stephen Trotter as examples of Australian housing. Including: Tent house, Mt.Isa; Indooroopilly House, by Hayes & Scott; St.Lucia house, by Eddie Hayes; Clayfield house, by Robin Dodds; typical tropical style houses in Brisbane.

Photographs taken by Stephen Trotter of houses in the suburb of Braybrook, 10km west of Melbourne.

Photographs taken by Stephen Trotter of examples of Australian architecture. Includes churches, houses and regional Queensland hotels.