| Edmond-Gabriel Puyo - First Conservative and former Mayor | Founded the museum in 1887 in the convent. |
| Louis-Marie Baader - Donor painter | Bequeaths 70 works to the museum in 1920. |
| John Peter Russell - Australian painter | 19 paintings acquired in 1927, inspired by Belle-Île. |
| Guillaume Floch - Morlaisian goldsmith | Author of the 16th century chalice acquired in 2011. |
| Maurice Denis - Decorative painter | Decors of his house in deposit since 1999. |
| Louis Le Gros - Deported painter | Works deposited by his son at the museum. |