Hi Pat,
My mother (daughter of Agnes Rennie told me that Agnes had been taken in by her older sister Ann (Annie) who lived on the IOM with her husband Fred Quin. My mum thought Fred had a Coal Company and she remembered they had a child Doris.
Mum also remembered another older brother of Agnes called Albert who lived on
IOM and looked after Light Boats.
I'm not sure if any of that information fits in with your details.
I remember one of my mum's cousins Madeline but I can't remember who's daughter she was.
Regards Wendy