[2] When she died in 1955, the collection had grown to 74 paintings, drawings and sculptures by European and North American artists.

[3] In 1955, Armand Hammer donated to the museum a collection of 48 works by Dutch, Flemish, German, and Italian masters of the fifteenth through seventeenth centuries.

The later collections span the medias of painting, prints, drawings, photography, and sculpture.

1608-1610) by Peter Paul Rubens, St. John the Evangelist (1618-1620) by Anthony van Dyck (attributed to), Isabella Hunter formerly Mrs. Anne Downman (ca.

1776-1790) by Angelica Kauffmann, Emma, Lady Hamilton by George Romney, Mrs. Burroughs (1769) by Thomas Gainsborough, Femme Etandant Son Linge by Jean-François Millet, Richard Nixon (1972) by Andy Warhol, and Blacklist (1999) by Jenny Holzer.