According to the data I have from ScotlandsPeople, GRO, etc., Gertrude Margaret Ayton married John Robert (Jack) Copland in 1916, in Gloucester. Jack was born in Lerwick in 1889 and died in Edinburgh in 1949. He was a dentist who started the Scottish blood transfusion service, for which he received the MBE, according to the King's Birthday Honours List of 1945.
I've been looking in vain for information about and photos of Ms Ayton, and would greatly appreciate being notified if anyone finds such, particularly a photo. In the meantime I'll keep looking and will post here if I find anything.