Hey- those are really cool. I especially appreciate your posting the Brian Sisters song (audio) on your site. I've been looking for that for ages!
Oh, and I responded about "The Walls Keep Talking" video on your site.

I think it might be the actual Teddy Hill Orch recording, which would mean it was late thirties... I cannot find any copyright info for when the darn thing was written. The 1941 Krupa/O'Day version is incredibly popular however. I can't find anything saying it was written earlier than 41... it's just a suspicion... lol