Naturalization based on marriage to an Irish citizen

[yankeegirl]

I plan on applying for naturalization early next year based on being married to an Irish citizen. I had a wee look at the application just so I can get an idea of what will be needed when the time comes, and I have a couple of questions.

I don't have a lot of the info that's needed for the application. No GNIB or PPS number since we live in Northern Ireland. What kind of proof should I gather to submit to prove living "on the island of Ireland"? Also, how will that work with the garda clearance, since I've never lived in the south?

[JAJ]

Any proof you're living legally in Northern Ireland, eg U.K. visa, NI number, U.K. tax records, utility bills, bank accounts, and so on.