| RefNo | Title | Source |
| DF/ZOO/200/61/86 | Herdman, Sir William Abbott, 1858-1924 (Liverpool) | |
| DF/ZOO/200/55/87 | Herdman, Sir William Abbott, 1858-1924 (Liverpool) | |
| WP/1/2/42 | Alfred Russel Wallace to Violet Wallace, from Parkstone, Dorset | |
| DF/ZOO/200/26/155-157 | Herdman, William Abbott | |
| DF/ZOO/233/1/1/16 | Correspondence He | |
| DF/ZOO/252/1/1/12 | Herdman, Sir William Abbott (Liverpool) | |
| DF/BOT/400/6/19 | Herdman, Sir William Abbott (Liverpool) | |
| DF/BOT/404/1/4/18 | Herdman | |
| DF/ZOO/252/1/2/69 | Herdman, William Abbott (Liverpool) | |
| DF/ZOO/252/1/4/78 | Herdman, William Abbott (Liverpool, Isle of Man & London) | |
| DF/ZOO/252/1/4/95 | Laurie, Robert Douglas (Liverpool, Isle of Man & Plymouth) | |