Pearse version 

The source's chorus of the Pearse version is nonsense. "Óró sé do bheatha abhaile", as the article tells you, can be roughly translated "Hurrah, you are welcome home". Why sé would suddenly be changed to be "'s é", presumably a contraction of "is é", which would be "[copula] [it-male], is a mystery to me. I also take massive issue with the translation. Even ignoring the fact that for absolutely no reason whatsoever, it just leaves large passages untranslated, some of it is just a clear sign of incompetence. "Fenians of Fál"? No. Just, no. Anyone with a basic familiarity with the Irish language in a modern context will be able to tell you that "Fianna Fáil" means "soldiers of destiny" - fáil being the genitive of fál, destiny, and fianna the plural of fiann, soldier, much as in "Amhrán na bhFiann", the soldiers' song, and Lia Fáil, the rock of destiny. It's the name of a party, for God's sake, and the article about that party also confirms it means "soldiers of destiny": Fianna Fáil. The Fenians were a minor Republican group, and "Fál" isn't even an English word...I'm sorry, but the sources – as I'm sure other speakers of the language, native or otherwise, will be able to confirm – are just wrong. Unless anyone has a legitimate reason to object, I'd like to correct the glaring spelling error in the original Irish, and correct the stupidity of this translation. I'm sorry, I really am, but even Google Translate could do a better job than this. (Hailing Frequencies)