Ambrose Saint John
Born in 1815; died in Edgbaston, Birmingham, England on 24 May 1875.
He was educated at Westminster School, and graduated at Christ Church, Oxford, where he formed a lifelong friendship with Venerable Cardinal Newman.
He was received into the Church in September 1845, and ordained at Rome.
He joined the Oratorians, and devoted himself entirely to missionary work, to the Oratory and its famous school.
An excellent classical scholar and a remarkable European and Oriental linguist, his death was caused by overwork in translating Fessler's book on infallibility.
Newman paid him an affectionate tribute in his .
New Catholic Dictionary