Maury was born on 22 May 1907 in Agen and ordained a priest on 29 June 1932.
On 9 July 1959, he was appointed Titular Archbishop of Laodicea in Phrygia[2] and was named apostolic delegate to Dakar,[3] a jurisdiction established in 1948 with responsibility for French colonial Africa.
The position was rechristened Apostolic Delegate to Western African on 23 September 1960 and given responsibility for Senegal, Upper Volta, Cote d'Ivoire, Dahomey, Guinea, Mauritania, Niger, Sudan, Togo, Ghana, Gambia, and Sierra Leone.
[4] On 28 December 1961 his status with respect to one of those countries changed when he was named Apostolic Internuncio to Senegal.
[7] In 1967, he renounced the last two nunciatures, continuing as Nuncio to the Congo until he left the diplomatic service the next year.