My father was a Japanese POW and I am trying to discover the name of the camp he was held in during World War II. It was in Osaka, Japan and, from information gleaned over the years, he worked down a mine. I believe it was a copper mine. I have been looking through the various web-sites but although I can find various camps in Osaka whose POW's were used as slave labour in the mines I have not been successful in finding the 'rosters' (list of prisoners' names) of those camps. Any ideas anyone?