
I thought you'd gone to bed!
No chance with this lot rattling around in my brain

Just been trying to find other son Benjamin in case mum was with him in '51 - no joy. There's one in Birkenhead, England with children of the right names but he is Benjamin C. and my Benjamin wasn't baptised with a middle name. No mother Helen living with him anyway.
That Caelaverock Helen - I pondered her for a bit but she must be a spinster.
added later - Helen is 'Nelly' in some records