Hello Sam's Mum, Do you know anything about the parents or siblings of David LYALL the lightkeeper? My 4-greats grandmother was Margaret LYALL (bef 1770 - bef 1841) who married Peter MILLER and they were having children in Sanday from 1789 - 1803.
I have often wondered if there was a relationship between David and Margaret - perhaps siblings? LYALL was not a common name in the Sanday parish records. Cheers, Pip