Rory Cooney is not someone whose work has got much traction in Australia, and have covered him here when his work has turned up in requests from overseas for the most part.
But he must be a big deal in the States, because he is an OCP artist that was anthologised repeatedly at GIA, including in Gather 3rd edition. You can even buy a handbell version at GIA, but the ordinary sheet music can be purchased at OCP. The text is the second page of this leaflet.
The sheet music in Gather confusingly puts the melody on the bottom line and the descant above it. It is also in Db so guitarists will use a capo and everyone else will curse.
It is a simple singable tune for gathering.