http://ourworld-top.cs.com/tannahillweavers/Lyrics/1193lyr2.htm (when the kye come hame, Tannahill version)http://www.uni-mainz.de/~cielp005/rebelsongs/sor91.htm (your Ireland boys hurrah, titled there: dear old Ireland) (I just see, Malcolm has linked to another version above under a third title)
Farewell my own dear native land is on the eponymous CD of the twenty CD series Voice of the people including lyrics. I have it at home, so if you wait a bit, you'll have that as well.
It's easier with more information.
Rebecca, it took me about one year to get good in doing searches and I still make mistakes.
Wolfgang