Kathryn Wasserman Davis is an American philanthropist and the widow of businessman Shelby Cullom Davis, who was the United States Ambassador to Switzerland from 1969-74. He headed Shelby Cullom Davis & Company, a firm specializing in insurance securities that he founded in 1947. He became a member of the New York Stock Exchange in 1941 and for many years was the managing partner of the firm bearing his name. He was its chairman at the time of his death. His son, Shelby, formed Davis Selected Advisers in 1969. In the 1980s he made it to the Forbe's richest 400 Americans list.Her husband died in 1994. During her life, Davis worked for the Council on Foreign Relations, and authored The Soviets at Geneva: The USSR and the League of Nations, 1919-1933. Upon her 100th birthday in 2007, Davis committed $1,000,000 to fund one hundred $10,000 projects for peace.