Vocal by Frances Langford. However, not released before '45. Probably, this was caused through second World War restrictions. Later on, the song changed its destiny: it was intended to be sung by Lauren Bacall in the movie To Have And Have Not ('44), but director Howard Hawks outvoted her performance eventually.
Hoagy Carmichael [on V-Disc for film To Have And Have Not]
Gloria Jean [in film The Ghost Catchers]
George Harrison [Hong Kong Blues is a second Carmichael song on that same Somewhere In England lp]