« Reply #10 on: Sunday 30 April 17 21:32 BST (UK) »
Just for the record and in case you find ancestors elsewhere in Orkney, the 1821 census for South Ronaldsay and Burray are available online along with OPR records from those islands as well.
I have found this site to be extremely useful for my ancestors who lived on South Ronaldsay.
http://www.southronaldsay.net/1821/
BURROW, BICKHAM, EVANS, SULLEY, STONE - Devon
STEPHENS, MALLET, ADAMS - Cornwall
HANCOCK , BUSSON - Somerset
MCCALLUM, MCDIARMID, MCNEILL - Argyle, Scotland
WALLS, SUTHERLAND, SIMPSON - Orkney, Scotland
FAIRBAIRN - Fife, Scotland
THOMPSON - Aberdeen, Scotland