SwingDJs

Check out this British group from the 1940s, featured on this excellent CD. You should be able to hear sound samples on Amazon UK. I think all the music is from the early 1940s.

Here's some background information on Harry Parry -

http://www.bbc.co.uk/wales/northwest/si ... arry.shtml

And a Youtube clip -

http://www.youtube.com/watch?v=a3ydx1uNMrs