I might not, but I can think of at least a few people who would. I'm sure Nyx would know how to find a person based on their logs in my father's archives. And if Than took them, he might have some ideas. Or Charon. Or Hermes.

[...]

This might sound like an odd question, but were they particularly valorous or, er, wretched in life? If not either, they're likely in Asphodel, which narrows it down a bit but not much.