I think that this is the Uncle James, aged 2 in 1881:
Bodlith, Llansilin
RG11/2656/24/1
Morris
John, 32, ag lab, b. Llanrhaeadr
Elizabeth, 31, b. Merionethshire, Cynwyd
Mary, 4, b. Denbighshire, Llanarmon
James. 2. b. -do-
Llanarmon and Llansilin are only a few miles apart
Gadget
PS - does this link in to your Pont y Meibion query, as P y M is just outside Llanarmon?