There's a faint bit of a cringe there as he says the first part, he would be correct in that assumption. As far as they know, or as far as he is aware. But Erina, Erina is an entirely different situation.

A small bit of a smile plays on his lips and he's slowly nodding. "As far as was found, only she and that child survived from that ship. Washed up on the Canary Islands and was brought home after. She... ah, if it helps, it wasn't just one child that was saved that night." Whether Jonathan knows that or not, he hasn't the foggiest.