The Bobbsey Twin Books (#s 1-3, 5, 6, 8, 10, 14, 16, 56, 68)

#1 to #3 - The Bobbsey Twins: Twins of Lakeport, Adventure in the Country, The Secret of the Seashore #5 - The Bobbsey Twins and the Mystery at Snowlodge #6 - The Bobbsey Twins on A Houseboat #8 - The Bobbsey Twins' Big Adventure at Home #10 - The Bobbsey Twins on Blueberry Island #14 - The Bobbsey Twins and the Cedar Camp Mystery #16 - The Bobbsey Twins Camping Out #56 - The Bobbsey Twins and the Big River Mystery #68 - The Bobbsey Twins on the Moon Cruise