Career
Here he changed his name to Simon Stock. He was eventually ordained there. Blyth returned to England in 1730, working in Wiltshire and then in London.
Whilst in England he used the pseudonym Francis Courtney.
During this time he also revised the Douay Bible with Bishop Challoner. In 1740, he was appointed assistance chaplain at the Portuguese Embassy in London.
In 1756 he was promoted to chaplain major at the Portuguese Embassy, a position he retained until his death on December 11, 1772. He was buried in the churchyard of Old Saint Pancras in London.