Bobbsey Twins

1 The Bobbsey Twins (1904)
     aka The Bobbsey Twins of Lakeport
2 The Bobbsey Twins in the Country (1907)
     aka Adventure in the Country
3 The Bobbsey Twins At the Seashore (1907)
     aka The Secret at the Seashore
4 The Bobbsey Twins At School (1913)
     aka Mystery at School
5 The Bobbsey Twins At Snow Lodge (1913)
     aka The Mystery at SnowLodge
6 The Bobbsey Twins On a Houseboat (1915)
7 The Bobbsey Twins At Meadow Brook (1915)
     aka Mystery at Meadowbrook
8 The Bobbsey Twins At Home (1916)
     aka Big Adventure at Home
9 The Bobbsey Twins in a Great City (1917)
     aka Search in the Great City
10 The Bobbsey Twins On Blueberry Island (1917)
11 The Bobbsey Twins On the Deep Blue Sea (1918)
     aka Mystery on the Deep Blue Sea
12 The Bobbsey Twins in Washington (1919)
     aka Adventure in Washington
13 The Bobbsey Twins in the Great West (1920)
     aka Visit to the Great West
14 The Bobbsey Twins At Cedar Camp (1921)
     aka The Cedar Camp Mystery
15 The Bobbsey Twins At the County Fair (1922)
     aka The County Fair Mystery
16 The Bobbsey Twins Camping Out (1923)
17 The Bobbsey Twins and Baby May (1924)
     aka Adventures With Baby May
18 The Bobbsey Twins Keeping House (1925)
     aka The Play House Secret
19 The Bobbsey Twins at Cloverbank (1926)
     aka The Four-Leaf Clover Mystery
20 The Bobbsey Twins at Cherry Corners (1927)
     aka The Mystery at Cherry Corners
21 The Bobbsey Twins and their Schoolmates (1928)
22 The Bobbsey Twins Treasure Hunting (1929)
23 The Bobbsey Twins at Spruce Lake (1930)
24 The Bobbsey Twins' Wonderful Winter Secret (1931)
25 The Bobbsey Twins at the Circus (1932)
     aka The Circus Surprise
26 The Bobbsey Twins on an Airplane Trip (1933)
27 The Bobbsey Twins Solve a Mystery (1933)
28 The Bobbsey Twins on a Ranch (1935)
29 The Bobbsey Twins in Eskimo Land (1937)
30 The Bobbsey Twins in a Radio Play (1937)
31 The Bobbsey Twins at Windmill Cottage (1938)
32 The Bobbsey Twins at Lighthouse Point (1939)
33 The Bobbsey Twins at Indian Hollow (1940)
34 The Bobbsey Twins at the Ice Carnival (1941)
35 The Bobbsey Twins in the Land of Cotton (1942)
36 The Bobbsey Twins in Echo Valley (1943)
37 The Bobbsey Twins on the Pony Trail (1944)
38 The Bobbsey Twins at Mystery Mansion (1945)
39 The Bobbsey Twins at Sugar Maple Hill (1946)
40 The Bobbsey Twins in Mexico (1947)
41 The Bobbsey Twins' Toy Shop (1948)
42 The Bobbsey Twins in Tulip Land (1949)
43 The Bobbsey Twins in Rainbow Valley (1950)
44 The Bobbsey Twins' Own Little Railroad (1951)
45 The Bobbsey Twins at Whitesail Harbor (1952)
46 The Bobbsey Twins and the Horseshoe Riddle (1953)
47 The Bobbsey Twins at Big Bear Pond (1953)
48 The Bobbsey Twins on a Bicycle Trip (1954)
49 The Bobbsey Twins' Own Little Ferryboat (1956)
50 The Bobbsey Twins at Pilgrim Rock (1956)
51 The Bobbsey Twins' Forest Adventure (1957)
52 The Bobbsey Twins at London Tower (1959)
53 The Bobbsey Twins in the Mystery Cave (1960)
54 The Bobbsey Twins in Volcano Land (1961)
55 The Goldfish Mystery (1962)
56 The Big River Mystery (1963)
57 The Greek Hat Mystery (1964)
58 The Search for the Green Rooster (1965)
59 Their Camel Adventure (1966)
60 Mystery of the King's Puppet (1967)
61 The Secret of Candy Castle (1968)
62 The Doodlebug Mystery (1969)
63 The Talking Fox Mystery (1970)
64 The Red, White and Blue Mystery (1971)
65 Dr. Funnybone's Secret (1972)
66 The Tag-along Giraffe (1973)
67 The Flying Clown (1974)
68 The Bobbsey Twins on the Sun-Moon Cruise (1975)
69 The Freedom Bell Mystery (1976)
70 The Smokey Mountain Mystery (1976)
71 The Bobbsey Twins in a TV Mystery Show (1978)
72 The Coral Turtle Mystery (1979)