Dignitary Identification Needed

[notinfringed]

Can anybody identify these dignitaries and officers? I know several of them are not US officers. Please correct me if I am wrong, but I am guessing the Gentleman with the top hat is King George VI, thusly making the Lady Elizabeth the Queen Mother? The tall Gentleman in the back I am guessing to be Neville Chamberlain? I know he was 6'3" or something like that. Any info on this picture would be extremely helpful. It was in a photo album from the Aleutians, and really doesn't fit in.

For comparison, here is a picture of King George VI I pulled off of Wikipedia about his visit to the 1939 worlds fair. This may be where this photo was taken?

Thanks

Levi