C. Douglas Hackman was born 1934, and worked as a Research Assistant for the Pacific Ocean Biological Survey Program. He was married to Linda Belle.
Smithsonian Institution Archives. Record Unit 000245, National Museum of Natural History (U.S.) Pacific Ocean Biological Survey Program, Records, circa 1961-1973, with data from 1923. Box 241, Folder 1 entitled "Personnel cards, giving address, phone, relatives; personal data."