Hello Peter
I was at school with a Caroline Mellows - she would be about 49 now and had a younger brother William. The family lived in Paris for a while due to the fathers job - sorry I can't remember his name or what he did other than that they were quite well off! Caroline and I went to Bruton school for Girls, Sunnyhill, Bruton, Somerset England from 1962. Perhaps the school could help you with past addresses. Good luck with your research.
Marion