The Great Oz Node (thing)

When L. Frank Baum died in 1920, Reilly & Lee, his publisher, continued the Oz series, releasing a new book each year until the 1940's. There are more post-Baum works than Baum works, but because they were published by Reilly & Lee they are considered "canonical" or "official" Oz books. Many of these official authors, or "Royal Historians of Oz," also released "non-canonical" Oz books through other publishers, once Reilly & Lee discontinued the series.

Ruth Plumly Thompson

• 1921 The Royal Book of Oz
• 1922 Kabumpo in Oz
• 1923 The Cowardly Lion of Oz
• 1924 Grampa in Oz
• 1925 The Lost King of Oz
• 1926 The Hungry Tiger of Oz
• 1927 The Gnome King of Oz
• 1928 The Giant Horse of Oz
• 1929 Jack Pumpkinhead of Oz
• 1930 The Yellow Knight of Oz
• 1931 Pirates in Oz
• 1932 The Purple Prince of Oz
• 1933 Ojo in Oz
• 1934 Speedy in Oz
• 1935 The Wishing Horse of Oz
• 1936 Captain Salt in Oz
• 1937 Handy Mandy in Oz
• 1938 The Silver Princess in Oz
• 1939 Ozoplaning with the Wizard of Oz
• 1960/1972 Yankee in Oz (non-canonical)
• 1976 The Enchanted Island of Oz (non-canonical)

John R. Neill

• 1940 The Wonder City of Oz
• 1941 The Scalawagons of Oz
• 1942 Lucky Bucky in Oz
• 1943 The Wonder City of Oz
• 1995 The Runaway in Oz (non-canonical)

Jack Snow

• 1946 The Magical Mimics in Oz
• 1949 The Shaggy Man of Oz

Rachel R. Cosgrove

• 1951 The Hidden Valley of Oz
• 1995 The Wicked Witch of Oz (non-canonical)

Eloise Jarvis McGraw and Lauren McGraw Wagner

• 1963 Merry-Go-Round in Oz
• 1980 The Forbidden Fountain of Oz (non-canonical)
• 2000 The Rundelstone of Oz (non-canonical)