| RefNo | Title | Source |
| DF/PUB/516/3/11 | Furniture beetles: their life history and how to check or prevent the damage caused by the worm | |
| DF/TM/1/43/1 | Correspondence G: Gahan; du Gallet; Geisler; Gerrard | |
| DF/ENT/301/23 | Correspondence register of C J Gahan | |
| DF/TM/1/2/7 | Correspondence G: Gadow; Gahan; Gardner | |
| DF/ZOO/200/33/100 | Gahan, Charles [Joseph] | |
| DF/ZOO/200/38/122 | Gahan, [Charles Joseph] | |
| DF/ZOO/200/46/160-161 | Gahan, Charles [Joseph] | |
| DF/ZOO/200/52/234 | Gahan, [Charles Joseph] | |
| DF/ZOO/200/44/153 | Gahan | |
| DF/ZOO/200/55/28 | Gahan, C J (London) 1909-1914 | |
| DF/ZOO/200/51/332-333 | Gahan, [Charles Joseph] | |
| DF/PH/2/1/4/3 | Staff Group Photograph: 'The Establishment' (Full Staff Photograph) | |
| DF/PH/2/1/4/2 | Staff Group Photograph: 'The Establishment' (Full Staff Photograph) | |
| DF/PH/2/6/5/1 | Staff Group Photograph: Zoology Department | |
| DF/ENT/301 | Registers of Entomology Departmental correspondence | |
| DF/TRU/906/1 | Minutes of meetings of the Principal Trustees, with nomination and other papers | |
| DF/PH/2/1/4/1 | Staff Group Photograph: 'The Establishment' (Full Staff Photograph) | |
| DF/PH/2/1/4/4 | Staff Group Photograph: 'The Establishment' (Full Staff Photograph) | |
| DF/ZOO/202/2 | 'Miscellaneous documents': letters, lists, memoranda and reports relating to the work of the department, gathered by Dr A Günther | |
| DF/ZOO/202/1 | 'Miscellaneous documents': letters, lists, memoranda and reports relating to the work of the department, gathered by Dr A Günther | |