Re: "Hull? I can't be in Hull!"
Out of all my characters, Prospero might be the most interesting in this situation. Made immortal since 1882, he's already lived through the 1920's and during these years originally he was a nomad trying to make sense of his life. First he'd try to wrack his memories if there was any moment he might have met himself in the past (even if it was as a "nameless mysterious stranger") or otherwise unexplained memory lapses of that era. Then, he'd research to see if this was TRULY his past (ie, does his family line still exist?, is this the real timeline?). If it did, he might be tempted to go back to England and finally say proper goodbyes if it was possible (his younger self pretty much upped and left his manor house and family when he realized he wasn't aging anymore). Push comes to shove, since his younger self WAS wandering around the other side of the world at this time, he disguises himself to the "appropriate" age and passes as himself for a while in terms of housing/finances (if he absolutely has to).