It appears that my ancestor also lived at that farm !!
I just located a 1794 document that stated that my gr-gr-gr-gr-grandfather John Parry was from "Hafodygog, Llanfairtalhaiain, but now of Moelfre, Llangwm."
I have visited Wales and seen the farm at Moelfre fawr, still owned by family members. But I have no idea where is Hafod-y-gog.
Howard Hickman
my grandfather was born in Llangwm, but migrated to California, where I now live