All is resolved. Open this document:

https://www.loc.gov/folklife/LP/CowboySongs_opt.pdf

Go to page 3 and read all about it, including what a hoolihan is.

I love this quotation from the author:

As a footnote, Morris in one letter adds:
"Many publishers swiped my song and had it
published, and many old maverick 'Paints'
were running wild and unbranded."