Hi shume and Sue,
Thanks for your replies. My grandmother was only 41 when she died - born 1894, died 1935. She married Archibald MacLean in 1929, in Glasgow. It was her daughter (my Mum's half-sister) who emigrated to Australia.
Again I realise this is very limited information - as I'm only a beginner I may find more as my research progresses!
Thanks again,
John