If you haven't had a chance to see any of the story yet then you can read the first three pages online - right here. If you like that, then you can buy back issues of The Phoenix to get the whole adventure - issues 75-78 for the complete thing.
I have also put up a character page for The Secret of the Samurai. With The Rainbow Orchid I think I only had one character who was also a real-life person (Mr Banerji), but in Samurai there are four or five.
Albert Koop was the Keeper of Metalwork at the Victoria and Albert Museum, a department that included Japanese armour (he was also editor of the Japan Society's Journal). I don't know what he looked like, so his appearance is from my own imagination.
Another real person was Major Lockett - Vivian Noverre Lockett, to be exact. As well as a Major (later Colonel) in the 17th Lancers he was a gold medal winner for the British polo team at the 1920 Olympics in Antwerp. Incidentally, although he doesn't appear, Charles Edward Hay was a real person as well, killed in France in 1918.
A minor character, but one I really like, is Mrs Whitley. To find out who she was, watch this short instructional video.
And lastly, Tanegashima Daizen was a real samurai general. He was the commander of the left vanguard of the Satsuma army during the Shimazu invasion of Okinawa in 1609. I couldn't find much about him, so plenty of artistic license used beyond that!
In the meantime, don't forget this fabulous competition in which you can win a copy of The Rainbow Orchid plus loads of excellent Phoenix goodies.