I heard this song when I was about 30. I called the host of the show and asked where to find it. She referred me to the Folksong Archive at the Library of Congress. As there really is a town in Ohio called Morrow, and I grew up just south of there, I went to some trouble to go to the Library and seek it out. The recording they had was of some geezer who only knew the first verse. They could have told me that over the phone. My research came to a deliberate end.
I could have just waited for the Muppets, or until someone invented YouTube. I have also learned that The Kingston Trio once recorded it. All this for a village of less than thirteen hundred people, known as the home of this guy whose niece married my nephew a year ago. Thanks, guys.
(H/T to Paul Mitchell.)