Re: joseph george hills lucknow india 1941 royal berkshire regiment
Helen, I have no experience researching UK vets, but here are two resources I found online which appear to be worth a look.
The first is a web page with info about service records.
The second is a list of veteran's unit associations.
If you scroll down you will find this contact info under the listing for the Royal Berkshire Regiment:
Royal Berkshire Regiment Old Comrades Association
Contact: c/o Duke of Edinburgh's Royal Regiment Association, The Wardrobe, 58 The Close, Salisbury, Wilts SP1 2EX, Tel: 01722 414536
Good luck. Hope some of this is of use to you.