Cornelia maybe? Could go by a nickname, like "Nell" or "Lia". Hmm. Or Rosalba, I really like that name! Gould have "Rosie" as a nickname. I think a name that was popular in the 20s would suit her, like Charlotte, Victoria, Helen or something like that :)
For him, what about Finn? It's Irish, but still quite "normal". And I think it sounds sporty too. Otherwise Marcus, Jason, Eric.