Get the details from her death certificate. This should tell you her date of birth, name(s) of Husband(s) and full names of both her parents as well as her date and place of death etc.
You can order a copy online at
www.scotlandspeople.gov.uk, or you can get an Edinburgh-based professional searcher (cheaper) or a kind soul (cheapest) who is planning a visit to Register House in Edinburgh to transcribe the details for you. There are links on the Scotland's People web site to lists of searchers.
