Article says

> And he once copyrighted a ballad, "Gotta Travel On," that became a million seller for the country singer Billy Grammer.

The blog I linked to above (101.blogspot…) tells us this:

Chief among these is his "I Feel Like I Gotta Travel On," about the origins of which Clayton was always mysterious. The likeliest reason is that he had heard the basic words of the chorus in a traditional song and had incorporated them into an old W.C. Handy melody, probably "Harlem Blues." The other verses were likewise adopted from other earlier songs, making Clayton's piece one that was rather more assembled from earlier sources than actually composed.

and in one of the comments someone writes:

I was curious whether you'd heard Neil Young's cover of Gotta Travel On (featured on Americana [2012] and presented as just Travel On and credited to Paul Clayton/Larry Ehrlich/David Lazar/Tom Six).


You might look through that other Mudcat thread I cited ("Wanted: Memories of Paul Clayton") to see if anything's there - it also has some other links at the top of the page.

http://mudcat.org/thread.cfm?threadid=79933