I think this person is her sister:
Helen Grassick, Strathdon/Corgarff, married William Cameron on the 25th January 1852. She died on 21 February 1863 in Strathdon aged 45. DoB 1818??. Parents given as Alexander Grassick, Crofter and Ann m.s. Farquharson.
Checking the OPR I can find no such couple as Alexander Grassick and either Ann or Mary Farquharson and can find no births for either of the above. Are they sisters? Who are the parents? Were there other siblings?
Can anyone here suggest a way around this brick wall?
Happy New Year to one and all - lang may yer lums reek!
Tish