I need this song for a school project and I can't remember the title. I sang in a few years ago in a choir. It goes...

Fare thee well my darling to America,
I will wait in Ireland for ye.
When the warm Sun of Texas makes the grain grow tall,
My darling, you'll come back for me.

It's about a man Patrick, who is traveling to America where his brother is "Patrick had a brother who was already there, together they worked on the land...." and he plants a rose for Molly. Then he dies and she is left in Ireland. I think it had something about the Emerald Isle in it. If you know what song this is please email me! Kafree710@hotmail.com I need help!