FRANK BAUM SIGNED AUTOGRAPH PAGE. Signed in 1st edition copy of Queen Zixi of Ix to his favorite sister. Queen Zixi of Ix is also Frank Baums favorite title. Autograph read "To my very dear Sister Mary Louise Brewster" . Frank Baum wrote The Bluebird Books series of novels popular with teenage girls in the 1910s and 1920s. The Bluebird series began with Mary Louise, originally written as a tribute to Baum's favorite sister, Mary Louise Baum Brewster. with more titles below 1.Mary Louise (1916) 2.Mary Louise in the Country (1916) 3.Mary Louise Solves a Mystery (1917) 4.Mary Louise and the Liberty Girls (1918) 5.Mary Louise Adopts a Soldier (1919) 6.Mary Louise at Dorfield (1920) 7.Mary Louise Stands the Test (1921) 8.Mary Louise and Josie O'Gorman (1922)

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