Hello Hazel,
Jean McKay, McMillan, died 1904. Beith, Ayr, aged 83 years, she is down as Jane.
Her husband William McMillan, died 1899. Beith, Ayr, aged 81 years.
Hopefully if you get these death certificates there parents names should be on them, that is provided who registered the deaths had this information.
Regards,
Jonn.