There's a repro of Henry Williams advertising logo on p.87 of 'Fir-Bob Land'. The logo features a sketch of the mill with the words "H.Williams Steam Corn Mills" painted in large white lettering on the roof of the main building.
Sorry, but I don't have a scanner to be able to put the illustration on here.
Apparently, construction of this mill entailed removal of a small chapel which originally stood there and this was replaced with the 'Tin Chapel'.
There is also a short chapter devoted to the History
of the windmill, although the author makes it clear the precise location of the mill is not known. However, '...some evidence suggests it may have been in the area just North of where The Travellers' Rest stands, perhaps on what is now the school playing field'.