Way Station by Clifford Simak
Enoch Wallace lives quietly on a farm in southwest Wisconsin. Except for serving in the Civil War, Enoch has lived in Wisconsin for all of his 140 years. Enoch, who looks 30, is given privacy by his neighbors, and his only regular contact is with the mailman. Well, his only human contact. Enoch runs a way station for interstellar travelers. He gets a message when to expect a visitor and what special requirements they have. Travel is by a sort of transporter. Enoch has regular visitors who have become friends, and this contact, along with his books and magazines make for a pretty satisfactory life. He also interacts with two 19th century holographic humans. The farmhouse has been remade to look old but is is impenetrable and basically indestructible. Enoch only ages when he leaves the farm house to take a daily walk around the property. One day a neighbor, a mute girl, needs his help, and his privacy is gone. Also, as is common in science fiction, the fate of the earth (and Enoch’s way station) is uncertain. A short, absorbing novel with a very likeable narrator; well worth reading. This novel was published in 1963, and won the Hugo Award in 1964.