For Watkin Jones there are 16 on Yasni with different names.
Among the most common last names on Yasni Watkin Jones is on position 4511.
Watkin, of clan and kin = wat = walter, Walter is the clan, same root as wilkinson: Walter son of the clan, or Watson: son of Walter
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)