Ady, Gobbo - thanks for that. I'll have to see what I can find using his discharge number then.
Pete - No, it doesn't really solve who it is in the photo. He didn't have any brothers, only sisters and I can't see anyone else who was born around that time. As you say, its the uniform thats the puzzle.
Anyway, if nothing else I found out about his war service. All I had up to then was his birth and marriage. I have searched for ages for his death - I did find one in the GRO Marine deaths overseas, but dismissed it as the age was wrong. Now that I know he lied about his age, that record fits - but now I can't remember how I found it! I remember it was 1924, age 51 and vessel Fernhill & thats it.
Never mind. I'll keep on looking!
Thanks for the Harry Tate link by the way - very interesting.
Annie