We already have a DD1 Rina (Catherine) Eleri and a very irish surname. (I'm welsh Dh is Irish and we live in NI)
Mary and related names is a family name on both sides (well we do both come from catholic stock :P) as is Iorweth/Iolo (well Edward is actually but want something welsh and Iorwerth is generally used as the welsh equivalent).
So our shortlist
Girls
Kirsten Mari nn Kit
Kit Mairin (with the fadas)
Mary Seren
Kit Maria
Josie Mari
Mairin Sian (with the house :P)
Boys
Jude Iolo
James Iorwerth
Iolo James
Liam Iorwerth
Conan Iorwerth
What do you think?