Jacqueline Mars, a member of the Mars family believed to be the fourth richest woman in America, at the National Museum of Women in the Arts 25th Anniversary Gala, which she co-chaired, in Washington, D.C., U.S., on April 27, 2012. Mars Inc., of which Ms. Mars is part-owner, is the world’s largest confectionary company. Photographer: Jay Mallin/Bloomberg