Many thanks for all these contributions.
"I feel I should mention that it's not possible to get a PDF of Alan Carrs birth in 1932 - it's certificate only" - yes, indeed. I've ordered a copy today but it will be about six weeks before it reaches me.
I consulted my friend who agrees with the Littler connection. I think we should concentrate on that link and ignore the Allan Thomas person.
Re: " What is known about the circumstances of the death of Alan who married Kathleen, and about her death? Perhaps they emigrated, perhaps he is still alive aged 93." No migration apart from my friend who is a daughter to Allan named Beverley. Her father, Allan, died from lung cancer and is therfore most certainly no longer living.
I may be able to check out the Kathleen (Redfearn) Battle reference tomorrow.
Re: Ladyhawk, "What was his father James occupation?" = Park Keeper (1954 MC) and the 1938 Census adds he worked with the Municiple Parks department.