Dear maz1, A little difficult finding someone when you can't give any basic information, but, if you are in the UK, go into Google, put in 192.com, then put in the name of the person you are looking for, and i8f you have it, the town, and it might give yoiu some info. (192 shows telephone numbers, electoral roll details, etc., of course, if they are exdirectory..................then nothing will come up, ) and of course, you have the additional problem of looking for someone called Brown, not a really obscure surname.
regards,
Boblima