Hi Andrew.
I'm very sorry to hear of your father's death. He was in fact great mates with my father Bernard Rose also, a pioneer in the engineering world of Bristows. This was back in the 60s when we lived in Horley.
We came to Australia in 1967 as a family, my father as the managing engineer with Bristows. I have seen your father's name written in his note book diary and my mum even remembers your dad. Unfortunately, my father died at the age of 46. I actually fly for Bristow in Australia.
I wish you and your family well.
Alan