I learned this song in 1976 in Northern California and it went something like:
I am a ramblin' hero
I traveled this country round
I made a resolution
To leave this Irish town
My knapsack on my shoulder
My slanty in my hand
I set sail for the USA
Like a ramblin' kerry lad.

When my ship sailed into the harbor
The women they jumped for joy
They said "look up, look up, hey,
here comes our kerry boy"

That's as much as I remember.