He scoffs at this, recognition going off in his head. "Right, Caleb's brother." His tone does cant up at the end of this statement as if he's asking a question. He doesn't remember if Linden's a brother or an in-law, but it doesn't really matter to him.

"Perseus Pahlke," he introduces himself, holding a hand out to shake. "Caleb and I were roommates at Harvard... you know, for a semester." If Linden strains himself he may be able to remember that Perseus spent a single Thanksgiving with the Harkways pre-presidency.