thropist wife of Dan Lufkin, co- founder of Wall Street firm Donaldson, Lufkin & Jenrette. Died July 3 of complications from breast and lung cancer. Douglas J. Dayton, 88. The son of a successful U.S. retailer, he became the first president of Target, a U.S. department store chain. Died July 5 of cancer. Masao Yos