Trains were my very first love, I remember sitting on grandpa's lap drawing trains.
At that railroads in Japan , and I , as an adult read as much stuff on the world's railroads as I could find, some how were blanked out of my mind, even when modern Japanese locomotives started replacing British and U.S. locomotives in many countries, so I found this site by accident and it is quite interesting.
http://ktymtskz.my.coocan.jp/kawakami/kawa.htmI view it on Google and hit translate, but it is worth reading the introduction before you go to the picture pages, quite informative.