Thanks for looking for me I really do appreciate it. I have found some more things about my grandfather, Nelson Gracey, who I keep refering to.
He was born in Birkenhead, he had a brother and he came to Plymouth between 1920-25 and joined the navy. He gave 50 years service to the Royal Navy and he died in 1975. Not sure if it the same Nelson who "went missing" .
He got married between 1925-30 and had 2 sons, Gordon and Kenneth, and a daughter called June.
Once again thank you for lloking around for me, I hope Mark checks this website out aswell as I would like to find out more from him.