Sorry to post this again, but if no one knows the song history, can anyone tell me how else I might find out if the music is still copyrighted? Is there some database I can check? Is there a time-frame after which music is considered public domain? Thanks for any info.

Here's my original request:

I've written lyrics for our church that go with the music to this folk ballad: "Where the Old Allegheny and Monongahela Flow".

Now the church is thinking of using it as its theme song and I'm a bit nervous. Does anyone know the history to this song? Is it old enough that I'm not infringing on any copyright with the music?

Help.

Best, Josh.