For Gwynn-Jones there are 15 on Yasni with different names.
Among the most common last names on Yasni Gwynn-Jones is on position 4512.
There is no meaning available yet for "Gwynn".
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ap Sion - Son of John. From the time when the English court clerks in Wales needed to identify people as the Welsh did not use surnames at that time.
(Sent from: Mike Jones-Pritchard)
