Their surname has a different spelling in the 1881 Census. You should be able to find their marriage record at
www.scotlandspeople.gov.uk which will give the names of their parents. When searching for the marriage, you can use a wild card to get over the problem of the different spelling.
Dwelling: Montgomerie St
Census Place: Tarbolton,
Ayr,
Scotland Source: FHL Film 0203610 GRO Ref Volume 619 EnumDist 2 Page 13
Marr Age Sex Birthplace
Bryce CUMESKY M 29 M Kirkoswald,
Ayr,
Scotland Rel: Head
Occ: Coalminer
Jane CUMESKY M 29 F Kilmarnock,
Ayr,
Scotland Rel: Wife
Occ: Miners Wife
Susan CUMESKY 8 F Tarbolton,
Ayr,
Scotland Rel: Daur
Occ: Scholar
Bryce CUMESKY 7 M Tarbolton,
Ayr,
Scotland Rel: Son
Occ: Scholar
Jane CUMESKY 5 F Tarbolton,
Ayr,
Scotland Rel: Daur
Occ: Scholar
Helen CUMESKY 2 F Tarbolton,
Ayr,
Scotland Rel: Daur
Maggie CUMESKY 1 F Tarbolton,
Ayr,
Scotland Rel: Daur
Regards,
Irene in British
Columbia