How to say "Someone in Somewhere"?

Hi,

I would like to say some like:

James an John in Japan.

I thought it would be something like that:

Jemuzu to Jon Nihon ni.

Can I say it like that?
Thank you :)

I would say:

- Nihon de no Jeemuzu to Jon. (James & John while in Japan)
- Jeemuzu to Jon. Nihon nite. (James & John. In Japan.)

Are you trying to write it like a photo caption (that is what I am assuming.)

Thank you for your response :)

Yes that is exactly what I want to do.