Bruce, I'll follow up your lead...thankyou.
Lodger, thanks also for your efforts...John Sommerville was the husband of Agnes Gibb's younger sister, Annie so thanks for the heads-up on that one.
Any other suggestions welcomed!
Sage.
Further digging has revealed a list of passengers arriving back in Britain...Wm, Agnes and Dorothy Steele arrived in Southampton, Eng. on board the 'Ceramic' 12 Dec 1928 and the proposed address in the UK was 'Ainslea', Belhaven Tce, Wishaw, Sct.
They were returning from South Africa.
This is them folks! The address above is that of Agnes' mother, Annie Gibb at which she died in 1931.
Thanks all,
Sage.