It might be worth ringing one of the other Kitanos, then, if they are in the London area.

Many people choose not to be in email directories who are happy to be included in phone directories, and as far as I know there are no national email databases (WHAT a treat they would be for "spammers").

The problem in getting help tracing people like this is that the people who might be in a position to help have no way of ensuring that your motives in the quest are good. But good luck with the investigation!!

G.