Known as Melin Geirn on the Isle of Anglesey (Ynys Môn) in North Wales.
The exact date of this windmill is unknown, although we do know that it appears to have finished working by the 1890s. The windmill is said to have operated farm machinery rather than grind corn and with no miller found in the parish on the 1881 census, this would appear to be so.
On the 1881 census at Geirn Farm – of which the mill is an integral part – the owner (or tenant) is a 54-year-old widower named John Roberts. Living at the farm with him are 3 sons, 2 daughters, and 2 servants.
The young farmer and his wife that now run the farm, follow on in his grandfather’s footsteps.