Walnut Grove Post Office was the post office in Walnut Grove. The Post Office was located in the same building as Doctor Baker's office. It was normally managed by Melinda Foster but has been managed (at different times) by Alice Garvey, Grace Edwards, and once Mrs. Whipple (temporarily) (Episode 409: The High Cost of Being Right), and for some reason Kezia later on. (Episode 519: The Lake Kezia Monster) Kezia had a habit of snooping in other people's mail. In the same building was Doctor Baker