Hi Maureen ,
If I have the correct family , Lots of children on Familysearch , 1841/1851 Census transcriptions on FreeCEN(Monduff Fetteresso Kincardineshire)
Rebecca Nicol(other surname Napier) , death 1865 , age 75 , Cookney Kincardine(shire) , mother's maiden surname Jack.
ev
Added -
Possible death for Thomas Nicol , 1866 , age 90(age 75 in 1851?) , Cookney Kincardine(shire) , mother's maiden surname Watt.