"All three artists, Motherwell (1915-1991), Helen Frankenthaler (b. 1928), and Louise Nevelson (1899-1988) are among the first rank of mid-century contributors to modern art. Motherwell and Frankenthaler are known for their contributions to abstraction in painting, while Nevelson is best known for her wood sculptures of black and white assemblages."
Haggerty Museum of Art, Marquette University, "Motherwell, Nevelson and Frankenthaler: Gifts from the Lillian Rojtman Berkman Collection" (2001). Catalogues and Gallery Guides. 40.