I remember this question being asked a lot in research psychology and eyewitness testimony, but it's ten years since I had anything to do with that. From memory (ha!), it appears that hypnosis is a very controversial subject and there are no clear answers to this. One thing that is clear, however, is that people who are easily hypnotised tend to be quite suggestible; and hypnosis makes them even more open to suggestion. This effect is liable to make them take on other peoples ideas and suggestions, including of course the hypnotiser's. So, to cut a long story short, you run the risk of taking on board and adopting the implicit and explicit assumptions of the person performing the hypnosis regarding your past, and truly believing them, independently of whether they happened or not.
On the other hand, there are other ways of reconstructing memories for specific names. One tried and tested technique which I can vouch for, and which has pelenty of support in psychological research, is to reconstruct the facts surrounding this name. Write them all down. For example, where did you meet them? What were they wearing? What did they say? What day was it? What was the weather like? And so on. No detail should be considered too trivial. You should keep reconstructing context for as long as you can. With a bit of luck, following this method, eventually you will suddenly remember their name.
― the music mole (colin s barrow), Wednesday, 20 October 2004 21:10 (twenty-one years ago)