According to the manuscript richly researched and detailed, by Mr. E.W. Howard in 1980
The name Bourquin came from the town of Sonceboz, Switzerland. They never came from
France as was thought. This was proved by the Catholic Diocese of Solothurn, Switzerland.
This did not mean that the Bourquin family was Catholic, but one of the forefathers
of the family worked for the Catholics under the leadership of the Bishop of Basel.
I hope that this sets the ruling as this theory has been proved and documented.