| Charles-Marie Franchet - Architect | Church designer, associated with Bossan. |
| Théodore-Gérard Hanssen - Master glassmaker | Author of the sixteen stained glass windows (1942–1944). |
| Léon Noyer - Curé of Chalmazel | He's a friend of Hanssen's, who made the stained glass windows. |
| Étienne Clément - Lyon entrepreneur | Head of the construction site in 1881. |
| Pierre Bossan - Lyon architect | Former partner of Franchet. |