Diego Rivera
Tannahill was a trustee of the Detroit Institute of Art's Founders Society, and served on the Detroit Arts Commission. He was a supporter of Diego Rivera, a mural painter, during a controversy surrounding Rivera's "Age of Steel" frescoes on exhibit in the Detroit Institute of Arts in which the Detroit City Council had been petitioned to remove it.
Objects at Crystal Bridges Museum of American Art (1)
Objects at Colby College Museum of Art (1)
Objects at National Portrait Gallery (2)
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