you've probably met bill ruddick at NYU, who had dinner with russell in the 1950s and knew anscombe and austin too. i don't know if you met michael dummett who briefly met wittgenstein. i'm not sure if i've met anyone who met ramsey though in principle it should be possible.

I asked also on Twitter, but: did Kripke meet Russell? There was speculation about that. (And yes I've met Bill Ruddick!)