Absolutely. Lots of examples. Logic would tell us that most later versions were coming from oral tradition and there are plenty of clues as you suggest. 'Hannah Le Gordon' is always the first one that springs to my mind. I think it was printed in Leeds c1850. Much easier for a ballad writer to earn his living by taking in something he picked up in the street, than having to create something new. The Glasgow Poet's Box actually advertised on their sheets for people to bring in songs off the street.