Dorr Bothwell

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From Independent Spirits: Women Painters of the American West, 1890-1945

Oskar Kokoschka

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Standing Nude Old Man, Turned to Left

From Oskar Kokoschka, Works on Paper: The Early Years, 1897-1917

Louise Everett Nimmo

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Untitled [Succulents]

From Independent Spirits: Women Painters of the American West, 1890-1945

Mark Twain

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From The Adventures of Tom Sawyer

Edgar Payne

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Canyon Riders

From Edgar Payne: The Scenic Journey

Emil Nolde

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Poppy

From Masters of Colour

Abigail Thomas

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From Safekeeping: Some True Stories From a Life

Carin Berger

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From The Little Yellow Leaf

Edouard Vuillard

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Lilacs

From Vuillard

Milton Avery

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Autumn 1914

I'm not sure which book this came from.