On the FindaGrave web site I found two wives of Dudley O. Clarkson, buried in Mauchline, Ayrshire. I think he must be Dudley Oswald Clarkson (1890-1955); though born and died in Essex he is known to have spent some time in Ayrshire.
The first wife, Helen Murray Ross (1888-1936), could be a daughter (birth registered in Hampstead 1888) of Donald Alexander MacBean Ross, manager of the London branch of the Commercial Bank of Scotland, and his wife Elizabeth Wilson née Ness. Is there some way to find out, and perhaps when and where she married Dudley?
Does anyone know anything about the second wife, Helen Adam Morris (1904-1939)?