[He's not the only one, but Aerith simply doesn't remember much because of how young she'd been.

She only nods.]

Mm-hmm, he married my mother on his research trip to the north.

[The one he'd never returned from, though Aerith doesn't mention this or why he never came back.]

I'd just been born when Hojo came and took me and my mother back to ShinRa for his research.