The man we are looking for we believe was briefly married to P Batchelor in the early 60s and we have found that through census searches.
We also know he was living alone again by 1965.
You probably have these details but just in case...... from London Electoral Register
Year
1963 Ward Paddington South Borough Paddington
21 Craven HillPhilip STONE
There are other 10 other persons at that address - no others with surname Stone
Year
1962 Ward Lancaster Gate Borough Paddington
(Flat 16) 63/65 Lancaster Gate
Philip H STONE
P STONE (female)
J A BATCHELOR (female)
Can send you a PM if you don't have their full names