" She later said she understood him to mean that the artist must learn to understand, not dominate the material. Besides her studies, Hepworth found time for marriage to John Rattenbury Skeaping, also a sculptor from Britain. Their only child, Paul, was born in 1929. A year earlier, the work of both Hepworth and Skeaping was exhibited at the Beaux Arts Gallery in London. Hepworth's doves in Parian marble from this exhibition are now in the Art Gallery of Manchester. She and Skeaping were divorced in 1933. That same year she married another British artist, Ben Nicholson. Under his influence, her sculpture became more severe and geometrical.

Hepworth and Nicholson traveled through France for most of the year, visiting the studios of such famous artists as Pablo Picasso and avant-garde sculptors Constantin Brancusi and Jean Arp. They joined the Abstraction-Creation group in Paris. Hepworth's work from this period includes a kneeling figure in rosewood, now in the Wakefield Art Gallery.

The birth of triplets, Simon, Rachel, and Sarah, in 1934 marked a profound change both in Hepworth's life and her life's work. Always short of money in recognition of her art, she said that after the birth of the triplets, she knew fear for the first time. She and Nicholson had about $100 in the bank at the time and were living in a basement flat. Her work changed, too. Relationships in space began to absorb her creativity, and her sculpture became more formal. For some time she had been drifting away from recognizable human forms, but now her pieces became far more abstract. An example is Three Forms (1935), consisting of a sphere and two nearly oval shapes. Critics have suggested this may symbolize the birth of her triplets.

By 1935, Hepworth and Nicholson had become involved with an international artistic group that included such names as Dutch abstract artist Mondrian and German-born Walter Gropius, an influential leader in the development of modern architecture. But World War II was now approaching and Hepworth, worried about the safety of her children, moved with them to Cornwall in southwestern England. The influence of what she called the "pagan landscape" and the sea is evident in her work from this period, such as Tides (1946), with a hollowed interior that contrasts in color with the polished grain on each side. By the mid-1940s, Hepworth's sculpture had become increasingly open and hollowed out so that the interior space became as important as what surrounded it.

Hepworth and Nicholson were divorced in 1951. For the next two decades, her work received broader recognition and honors. It was part of an exhibition in Venice, the Twenty-fifth Biennale, which she attended, sitting every day in the Piazza San Marco and watching the way people reacted to her use of space. She produced Contrapuntal Forms in blue limestone (1950) for the Festival of Britain, which stresses the opposition of vertical forms to the horizontal. For a change of pace in 1954 she designed sets for Michael Tippett's opera, Midsummer Marriage. By this time, Hepworth had started to work with metals. One of her best-known works, which now guards the United Nations Plaza in New York City, is Single Form (1963), a towering shield-like mass of bronze. She received a number of commissions in the 1960s for truly huge sculptures, most of them about 20 feet high. An example is Four-Square Walk Through (1966), a gigantic geometrical piece.

Barbara Hepworth's life and work were honored by her country in 1965 when she was made a Dame Commander of the Order of the British Empire. She died on May 20, 1975, in a tragic fire in her home at St. Ives, Cornwall. The house is now a museum and features many of her works.

An artist who never received the level of attention given to her male contemporaries, Hepworth strongly felt that women artists could contribute greatly to an understanding of the visual arts. "Perhaps especially," she said, "in sculpture, for there is a whole range of formal perception belonging to feminine experience."

For Barbara Hepworth's work, see her own publications: Carvings and Drawings (1952), Drawings from a Sculptor's Landscape (1966), and A Pictorial Autobiography (1970); A good introduction to her work is A. M. Hammacher, Barbara Hepworth (1968); J. P. Hodin, Barbara Hepworth (1961), contains a biography and an analysis of the development and style of the artist; See also: Who's Who in Art (1956); Encyclopedia Americana (Vols. 10,14, 1996