Main Library was part of the Great Court buildings designed by Hennessy and Hennessy in 1935-1936. It consisted of two floors with a glass ceiling in the light well in the centre. Main Building was designed to be extended with an additional three floors, with high ceilings and a large light well in the centre. When the Library had insufficient space for students and books it was decided to go ahead with the extension of three more floors, as specified by Hennessy and Hennessy. Birrell proposed five additional floors instead of the three, the installation of passenger lifts, fluorescent lighting, and air-conditioning. Birrell was responsible for the internal arrangement and finishes. This file comprises 15 plans for alterations and additions to Main Library. Includes: sketch of lower ground floor (now Level 1), working drawings for 1st to 5th floors (now Level 3 to Level 7), stair details and compactus shelving.

Main Library was later known as Undergraduate Library; with the construction of Central Library in 1971 its name was changed to Duhig Building; and later, around 2000, to Duhig Tower.

One volume of 51 plans for the Job A37 J.D. Story Administration Building The University of Queensland. Previously held together with three metal holders Drawings are numbered 3 to 41A. Some drawings have a second version. Drawings 1, 2, 10, 21 and 41 are missing. On the cover there are titles for 40 drawings, however there is a drawing number 41A that appears to belong to this volume. Drawings date from Mar to Jun1964. From cover page: University Architect, J. P. Birrell; Assistant Architect L. Kulley. Consultants: Antony Tod, Structural Engineer; P. R. Scott & Associates, Mechanical Engineers; and Herbert Mitchell & Son, Quantity Surveyors.

One volume of plans for the J.D. Story Administration Building, The University of Queensland. Held together with three metal holders; cover and back pages have come away and several pages are coming loose. Drawings are numbered 1 to 47. From title block, the University Architect is J.P. Birrell and Consulting Engineer is Antony Tod. Drawings date from Dec 1963 to Mar 1964. The cover page has the index for all 47 plans.

One sketch plan, ink line drawing on tracing paper, for the Fifth floor. From title block building is J.D. Story Administration Building There is no job number but given this plan has the Senate Room on the fifth floor it is most likely part of Job A 37. From title block: University Architect, J. P. Birrell. Drawing dated 24 Sept1964.

One sketch plan, ink line drawing on tracing paper for a u-shaped table in the Senate room on the fifth floor. Table has seating for 33. From title block: University Architect, J. P. Birrell. There is no job number but given this plan has the table in the Senate Room on the fifth floor, it is most likely part of Job A 37. Drawing undated.

One ink line drawing on tracing paper. There is no job number and title block. Dated 28 Oct1964.

One volume of 47 plans for the J.D. Story Administration Building, The University of Queensland and 3 drawings. All have the Reference no. 1066 in the title block.

One drawing for R. C. beam details for the Administration Building, The University of Queensland. Drawing numbered 18A. From title block, the University Architect is J.P. Birrell and Consulting Engineer is Antony Tod. Dated Jan 1964.

One volume of plans for the Job A37 J.D. Story Administration Building The University of Queensland and 6 architectural drawings.

One sketch plan, ink line drawing on tracing paper, for Job A 37 Propsed table for senate room - J. D. Story Admin. Bldg. Drawing dated 10 Dec 1964. University Architect, J. P. Birrell. Drawings of the Senate Room on the fifth floor are from after the initial submission to the Australian Universities Commission (A.U.C.) was rejected. The A.U.C. were not in favour of the Senate House.