Ray, if you're sure it's the same poem, I'd guess that folks who posted it to the Internet just used the name they knew it by. I've heard Wallace McRae's classic "Reincarnation" called a bunch of other things, and that's a lot more recent than anything Curley wrote.

I checked the books I've got here at work -- "Gathering," "Maverick Cowboy Poetry" and others -- and didn't find Curley's poem right off the bat. But I'll keep lookin' and see what I find.