Joyce Clyde Hall, 18, stepped off a train in Kansas City, Mo., from Nebraska in 1910 equipped with little more than two shoeboxes of picture postcards and his entrepreneurial spirit. (Hallmark)

Joyce Clyde Hall, 18, stepped off a train in Kansas City, Mo., from Nebraska in 1910 equipped with little more than two shoeboxes of picture postcards and his entrepreneurial spirit. (Hallmark)