| Signature | Name | Note |
| AHM | Marks, Arthur H | |
| ALS | | |
| Ao | L'Estrange, Roland | |
| Ape | Pellegrini, Carlo | |
| Ape Junior | | |
| Astz | | |
| Ἀτη | Thompson, Alfred | |
| BEDE | | Bede |
| Bint | possibly Mary Catherine Rees née Dormer | :wikt:bint |
| Bulbo | Beerbohm, Max | |
| CB | Bradley, Cuthbert | |
| Cecioni | Cecioni, Adriano | |
| CG | Gould, Francis Carruthers | |
| CGD | Duff, CG | |
| Chartham | | |
| Cloister | Duff, CG | |
| Coïdé | Tissot, James | |
| Corbold | Corbold, AC | |
| D'Épinay | d'Épinay, Prosper | |
| Delfico | Delfico, Melchiorre | |
| Drawl | Ward, Leslie | |
| EBN | Norton, Eardley | |
| Eianley Cock | Cock, Eianley | |
| ELF | Fildes, Luke | |
| Emil Adam | Adam, Emil | |
| FCG | Gould, Francis Carruthers | |
| FG | Goedecker, Franz | |
| Flagg | Flagg, James Montgomery | |
| FR | | |
| Frank Paton | Paton, Frank | |
| FTD | Dalton, FT | |
| Furniss | Furniss, Harry | |
| FV | Villiers, Frederic | |
| GAF | Fothergill, G.A. | |
| GAW | | |
| GDG | Giles, Godfrey Douglas | |
| GEO HUM | | |
| Glick | | |
| GO | Goedecker, Franz | |
| Grimm | Grimm, Constantine von | |
| Guth | Guth, Jean Baptiste | |
| Hadge | | |
| Hal Hurst | Hurst, Hal | |
| Hay | W.B. Hayes | |
| HCO | | |
| Hester | Hester, Wallace | |
| Hit | | |
| How | | |
| JB Guth | Guth, Jean Baptiste | |
| JBP | Partridge, Bernard | |
| JEST | | |
| Jopling | Jopling, Joseph Middleton | |
| jmp | Price, Julius Mendes | |
| JTJ | Tissot, James | |
| K | | |
| KITE | | |
| Kluz | | |
| KYO | Braddell, Robert Wallace Glen Lee | |
| Lib | Prosperi, Libero | |
| Leslie Ward | Ward, Leslie | |
| Lyall | | |
| Max | Beerbohm, Max | |
| MD | Loye, Charles Auguste | |
| Montbard | Loye, Charles Auguste | |
| Mouse | | |
| MR | | |
| N | | |
| Nast | Nast, Thomas | |
| Nemo | Grimm, Constantine von | Latin for "no one". |
| Nibs | | |
| OWL | | |
| PAL | Paleologue, Jean de | |
| PAT | | |
| Percy Earl | Earl, Percy | |
| Pip | | |
| PRY | | |
| Pyg | | |
| Quip | Whisstock, Fred | |
| Quiz | Mellor, John Paget | |
| Ray | | |
| Ritchie | Ritchie, Alick Penrose | |
| RUTH | Beerbohm, Max | |
| Sic | Sickert, Walter | |
| Singe | Pellegrini, Carlo | French for "ape". See Ape. |
| SNAPP | | |
| Spy | Ward, Leslie | |
| sTel | | |
| Strickland | | |
| STUFF | Wright, Henry Charles Seppings | |
| Sue | | |
| T | Chartran, Théobald | |
| TC | Chartran, Théobald | |
| Tec | | |
| VA | | |
| Vanitas | | Latin for "vanity". |
| VER | Verheyden, François | |
| wag | Witherby, AG | |
| Wallace Hester | Hester, Wallace | |
| WE Miller | Miller, William Edwards | |
| WGR | | |
| WH | Hester, Wallace | |
| Whistler | Whistler, James McNeill | |
| WHO | | |
| WV | Vine, W | |
| XIT | | |