To add to this I have found a little further info on your ancestor Paul Toureille, Jean's father.
He was one of a band of 115
émigrants who left France first for Lausanne, in modern Switzerland, and then moved on again on June 26, 1752, to Rotterdam, moving again in September of that year to the Huguenot community in Dublin.
They were led in this exodus by Pastor François Coste, who was one of Antoine Court's 'Desert Church' deputies, clandestine preachers operating illegally in France, risking execution, codenamed 'Juston'. Five letters of Coste, written at various steps on this journey recount their various adventures on the trip to Rotterdam, and the struggle to survive.
In addition this group were also discussed in Paul Rabaut's biography, as part of his letters to Pastor Antoine Court (1739-1755), where Paul Toureille is specifically mentioned by name (page 215 of modern printing) described as a Silk Weaver of Nimes, who greatly angered the Marshall of that city when he fled, as he did so leaving great debts behind him.
Once in Dublin Paul's wife and children, (who fled France the year after him, see here:
http://www.tomosborn.f2s.com/notes/notes_tourell_app_2.html) later joined him.
The Toureilles and some others then. some time later, moved on again, from Dublin to the Huguenot community in London, where as stated above they were received by Bourdillon in Spitalfields.
Regards
Richard