« Reply #5 on: Saturday 20 February 21 12:46 GMT (UK) »
Have you looked at the original 1841 census? Your people are living at Mill of Rathen which is next to Quarryhead (multiple spellings over the years) on the schedule...Folio 1 page 3...the only mill close by is Mill Of Forrest which is Folio 1 page 1...you need to 'walk' the routes to place your mill in the landscape

North East Scotland above the Tay...
JOLLY, Johnston,Thom, Rae, Davidson, Fielding, Sherret
FEARN, McKenzie, Stirling [brick wall], Robb, Wilson, Stott
RUSSELL, Fullerton, Christie, Cochrane, Davidson, Coutts, Easton, Scott
FRASER, Henderson, Noble, Mundie, Goodall, Thain, Neish, Moir