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Traugott Senn was a Swiss landscape painter, considered an artistic pioneer of the Bernese Zeeland and an innovator of the French landscape of the time. In his younger years he belonged to the Bernese School. Landscapes of Bernese Zeeland constitute the greater part of Senn's paintings.
Charles Christian Nahl was a German-born painter who lived in the United States for the last half of his life. He lived most of those 30 years in California and is considered among the state's first significant painters.
Leaving political unrest in Hesse and France, Nahl immigrated to New York City in 1848 with family and friends. He moved to California the following year, at first hoping for luck in the gold rush. He and his family settled in what became part of the United States, living in Sacramento until 1852 and then in San Francisco.