| RefNo | Title | Source |
| DF/ADM/1005/21 | Coe, Ralph L | |
| DF/ENT/307/66 | Coe, Ralph L | |
| DF/ENT/331/7/2 | Coe, Ralph Leonard: Correspondence, M - Z | |
| DF/ENT/331/7/1 | Coe, Ralph Leonard: Correspondence, A - L | |
| DF/PH/2/1/6/22 | Staff Photograph: L Coe | |
| DF/ENT/302/9 | Entomology out-letters, carbon-copy book | |
| DF/PH/2/1/6/38 | Staff Photograph: Coe, Ralph Leonard | |
| DF/ENT/340/4/6 | Cockerell - Collins | |
| DF/ENT/302/10 | Entomology out-letters, carbon-copy book | |
| DF/ENT/311/40 | Coe, R L: Handbooks for the identification of British insects, vol. 10, part 2c: Diptera, Pipunculidae (1966) | |