Paul Malo Théophile Peyron (1901). La cathédrale de Saint-Pol et le minihy Léon (in French). Quimper: A. de Kerangal. pp. 28–32. A list of the Bishops of Saint-Pol de Léon is given at pp. 6-11.
Graveran was born at Crozon in 1793. He was named a teacher at the Major Seminary, and then became a cure of the church of Saint-Louis de Brest. He was appointed Bishop of Quimper on 4 June 1840 by King Louis Philippe, confirmed by Pope Gregory XVI on 13 July, and consecrated on 23 August 1840 by Archbishop Denis-Auguste Affre of Paris. After the Revolution of 1848, he was elected a delegate to the Constituent Assembly. He completed the construction of the towers of the cathedral. He died on 1 February 1855. François Louis Michel Maupied (1856). Vie de Mgr J.-M. Graveran, évêque de Quimper et Léon dédiée a Mgr René-Nicolas Sergent évêque de Quimper et Léon F. L. M. Mupied (in French). Vannes: Gustave de Lamarzelle. Canon Paul Peyron, in: Société bibliographique (France) (1907), L'épiscopat français..., pp. 493-494.
Valleau was born at La Couarde (Ile-de-Ré) in 1835. He studied at the Petit Seminaire of Pons, and the Grand Seminaire of La Rochelle. He was a teacher at the Institut diocesan at Pons, and then vicar of Saint-Eutrope in Saintes, followed by several other assignments in various parishes. He was named Archpriest of the Cathedral of Saintes in 1887, which he held for five years before being nominated Bishop of Quimper. He was appointed by the French government on 26 November 1892, and confirmed by Pope Leo XIII on 19 January 1893. Valleau was consecrated bishop on 5 March 1893 by Archbishop Pierre-Marie-Etienne-Gustave Ardin of Sens. He made his formal entry into Quimper on 14 March 1893. He died on 24 December 1898. See: Canon Peyron, in: Société bibliographique (France) (1907), L'épiscopat français..., pp. 496-497. Recueil de la Commission des arts et monuments historiques de la Charente-inférieure (in French). Vol. 15. Saintes. 1901. pp. 30–31.{{cite book}}: CS1 maint: location missing publisher (link)
Dubillard was born in Soye (Franche-Comté) in 1845. He studied in Vesoul and Besançon, and obtained a doctorate in theology in Rome. From 1887 he lectured in dogmatic theology in the Seminary in Besancon, and later became Rector (1881-1890). On 14 December 1899 he was named Bishop of Quimper, and was consecrated on 24 February 1900 by Archbishop Fulbert Petit. On 16 December 1907 he was transferred to the diocese of Cambrai. He was named a cardinal by Pope Pius X on 27 November 1911. See Canon Peyron, in: Société bibliographique (France) (1907), L'épiscopat français..., p. 497. Harris M. Lentz (2009). Popes and Cardinals of the 20th Century: A Biographical Dictionary. London: McFarland. p. 63. ISBN978-1-4766-2155-5. Martin Bräuer (2014). Handbuch der Kardinäle: 1846-2012 (in German). De Gruyter. pp. 217–218. ISBN978-3-11-026947-5.
