I had just written out a whole spiel in response to recent questions and lost it! But in summary - can't scan the writing as it has a very pronounced background. But magnifying it all I am now sure it is LANA COATES. All the other words I have included in previous posts.
I had also zeroed in on JI Thornycroft (the name on the photo is definitely Thornicroft) and thought him - or someone in his family - to be very prospective. I had also noted his marriage wasn't to a Coates but I do think it quite possible that Blanche Ada's name may have been mispelled as the name Coules is so close. Perhaps I need to find her birth record......
I also note that the Chairman of the J&P Coats Co at the time of their expansion into Russia was an Archibald Coates/Coats who I imagine would have lived in Glasgow or perhaps Paisley (Renfrewshire) - I do not know anything about his children but maybe this is another possibility.....
Thanks so much Aghadowey, Monica and Loobyloo - you are wonderful!!