Dan Lufkin cityfile · 03/14/08 04:16AM With William Donaldson and Richard Jenrette, Lufkin co-founded investment bank Donaldson, Lufkin & Jenrette in 1959 and cashed out 41 years later, selling DLJ to Credit Suisse for $11.5 billion. His wife is lady about town Cynthia Lufkin.