| RefNo | Title |
| DF/MIN/12/2 | Descriptive notes on large specimens in the gallery by Leonard J Spencer |
| DF/MIN/12/3 | Draft text for a guide leaflet to the gallery by Leonard J Spencer |
| DF/MIN/11/4 | Expedition to the Libyan Desert by Leonard J Spencer: proposals and a report |
| DF/MIN/19/6 | Laboratory notebooks of Leonard J Spencer |
| DF/MIN/12/4 | List of photographs displayed in the gallery by Leonard J Spencer |
| DF/MIN/3/2/33 | Lake Labyrinth meteorite, South Australia |
| DF/MIN/19/10 | Corrections and additions to the register, after laboratory analyses by Leonard J Spencer |
| DF/MIN/3/2/31 | Kuznetzovo meteorite, USSR |
| DF/MIN/10/3/16 | Notes on localities on specimen labels by Leonard J Spencer |
| DF/MIN/11/8 | Expedition to the Libyan Desert by Leonard J Spencer: newscuttings relating to the discovery of silica glass |
| DF/MIN/18/9 | Staff - Post of Keeper of Mineralogy |
| DF/MIN/10/3/7 | Notes on silica glass from the Libyan desert by Leonard J Spencer |
| DF/MIN/10/1/35 | Notes, lists and references to literature on meteorites and tektites by Leonard J Spencer |
| DF/MIN/18/7 | Staff Reports to Trustees |
| DF/MIN/10/1/38 | Kyancutta Museum [South Australia] |
| DF/MIN/10/3/2 | Notes on mineral localities by Lazarus Fletcher, George T Prior and Leonard J Spencer |
| DF/MIN/10/3/3 | Notes on mineral localities by Henry A Miers, George T Prior, Leonard J Spencer and Jessie May Sweet |
| DF/MIN/11/2 | List of mineral donations received during attendance at the International Geological Congress in South Africa by Leonard J Spencer |
| DF/MIN/10/2/15 | The Cullinan and other South African diamonds: notes, letters and newscuttings assembled by Leonard J Spencer |
| DF/MIN/3/2/3 | Hoba meteorite, Namibia |
| DF/MIN/10/1/21 | List of correspondence relating to meteorites received 1932-1934, by Leonard J Spencer |
| DF/MIN/20/35/121 | Brauns, Reinhard A, 'The Mineral Kingdom': letter of Leonard J Spencer with corrected proofs |
| DF/MIN/11/1 | Report on a collecting trip in Quebec, Ontario (Canada), New Jersey and Pennsylvania (USA), by Leonard J Spencer |
| DF/MIN/10/3/9 | Coloured plate used as a cover for Leonard J Spencer's 'A key to precious stones': notes and a proof |
| DF/MIN/20/36 | Spencer, Leonard James: correspondence and papers |
| DF/MIN/18/36 | First World War |
| DF/PH/2/1/4/1 | Staff Group Photograph: 'The Establishment' (Full Staff Photograph) |
| DF/ADM/1000/99 | Reports and letters 1914 |