I live in New Hampshire. I have neighbors that won't vote for any president that they haven't shaken hands with, and that rule typically does not constrain their ballot very much.
I got a bone to pick with your state, regarding the order of primaries.
Anyway, I know the current Secretary of Energy from when he was the head of MITEI (Ernest Moniz)--he used to host seminars and discussion panels. He probably couldn't pick me out of a lineup, but that's how these things go.
Other than that, I've seen John Lewis at a public appearance (he is a Representative from Atlanta and a BFD from the Civil Rights days) when I was at GT, and Scotty Brown made a trip to my lab for a photo-op two years ago when he was a Senator. I saw all the surviving presidents (and their motorcades with SS) during the Ted Kennedy funeral--they gathered here in Boston for a service, but only from a distance. That's about it for national offices.
Back in my old Ohio hometown, I lived a few doors down from the mayor. Small place, just about everyone knew each other.