When sedans and station wagons replaced trains for vacationers heading to New Hampshire's rugged and picturesque White Mountains, new motels and attractions catering to middle-class families sprang up amidst the established grand hotels and diversions for socialites, artists, skiers, and hikers. In 1954, a tiny children's park inspired by a collection of storybook dolls opened in the quiet village of Glen. Through a unique combination of independent...