Gertrude Marianne Achenbach Coor (1915 - 1962) was a German-American art historian.[1][2]
Gertrude Achenbach grew up in Frankfurt. In 1933, she moved to Italy, then Wales, and then the United States. She worked on the Princeton Index of Christian Art, and taught at Princeton University. She was research assistant to the art historian Millard Meiss.[3]
Gertrude Coor wrote on artists including Coppo di Marcovaldo and Ugolino di Nerio. In 1961 she published a monograph on Neroccio di Bartolomeo de' Landi.
Her photographic research collection is located in the Department of Image Collections, National Gallery of Art.