[1] Jean-Baptiste Boucho was born in Athos-Aspis, France and in 1824, moved to Malaya[2] where he was ordained as a priest of the La Société des Missions Etrangères dedicated to missionary work.
[1] In Penang, he was appointed the Parish Priest of the Church of the Assumption and established the Catholic Free School for boys.
[2] On June 10, 1845, Pope Gregory XVI appointed him Vicar Apostolic of Malacca-Singapore and Titular Bishop of Attalea in Pamphylia.
[1] On October 19, 1845, he was consecrated bishop by Archbishop Patrick Joseph Carew, Vicar Apostolic of Bengal.
[1] Bishop Marc-Thomas Oliffe, Coadjutor Vicar Apostolic of Bengal, served as Co-Consecrator.