After passing the Arizona and California bar exams, Dave moved to Los Angeles, where he worked for the state and two corporations before entering private practice. He had intense interest in public and civic affairs, and was a founder and leader in a number of organizations, including the Asian American Economic Development Enterprises, United Chinese Restaurant Association, Chinatown Public Safety Association, and the National Association of Chinese American Bankers.
Dave is survived by his wife of 48 years, Sally Kin Woo; siblings Helen Woo Tang of Phoenix, Ariz.; Wilson Woo of Sunnyvale, Calif.; and Ruby Woo Dea of Calimesa, Calif.; and his nieces, nephews, grandnieces, and grandnephews.