I believe Shinjuko is an area near Tokyo or may refer to a province, but I am not sure . The reference I have shows him in the the Tokyo Main camp , but there were quite a few sub-camps also as part of this camp . This listing just means he was in the Main Tokyo camp system . I dont know his middle name, only his initial. My list has a spot for " State enlisted from " , but his is blank . I wish I had more for you.