| Paul Cézanne - Painter and owner | Designed and used the workshop from 1902 to 1906. |
| Émile Bernard - Painter and correspondent | Recipient of key letters on his method. |
| Joachim Gasquet - Friend and biographer | Described the workshop and its working habits. |
| Ambroise Vollard - Art dealer | Purchased some of his works after 1900. |