(Saint-Paul de Fenouillet (France) 1850-Constantine (Algeria) ? 1924)
Mainly active in Constantine and its region, Bonnell serves as a road agent and then architect of the civil hospital and the Alsace-Lorraine orphanage between 1868 and 1882. From 1901, he is appointed supervisor of the diocesan works of the city. He is also an architect for the general government and designs projects in other regions of Algeria. He is an academic officer and officer of the Nicham Iftikar.