Hi all, sorry it's been a while but I've been waiting for the death certificate to arrive from the UK. Here are the details as far as I could decipher them:
The death was registered on 11 Sept, 1967 in the registration district of Folkestone, Kent. He died on 8 Sept, 1967, aged 67. The register number is 150 (for 1967).
At the time he was living at 3 Langdon Rd, Folkestone. He died of Coronary Thrombosis, & the death was certified by D>A> Ewing, MB.
If anyone is able to track down where his remains are likely to be then that would be grand.