| Joseph-Dominique d'Inguimbert - Collector and Founder | Gathered the museum's first collections. |
| Jean Camille Formigé - Architect | Designed the museum building in 1888. |
| Joseph Siffrein Duplessis - Homonymous painter | The museum bears its name in homage. |
| Louise Catherine Breslau - Exposed Artist | Author of the*Gamines* (1890), a flagship work. |
| Antoine Eysséric et Casimir Pascal - Patrons | The museum was completed in 1888. |