The Bobbsey Twins' Adventure in the Country by Laura Lee Hope, Vintage 1961, Hardcover Book, Illustrated
The Bobbsey Twins, Mystery on the Deep Blue Sea by Laura Lee Hope, Vintage 1965, Hardcover Book, Illustrated
The Bobbsey Twins Big Adventure at Home, Laura Lee Hope, Hardcover, Dust Jacket, 1964
The Bobbsey Twins at the Seashore, Laura Lee Hope, Janet Laura Scott, Vintage 1954