The Clinton First Home Museum in Hope, Ark., will become an official National Park Service historic site at the beginning of next year. It’s a two-story house on South Hervey Street that served as the center of future president Bill’s life until he was 10. With its white clapboards, green trim, broad eaves, and front porch, the place looks like it was tele-transported into this century from the early 1950s. There’s good stuff inside, such as a Lionel train set little Bill’s stepfather gave him. The private foundation that has run the museum for some years and is now donating...