L. Stephen Coles

Leslie Stephen Coles (January 19, 1941 – December 3, 2014) was an American biogerontologist who was the co-founder and executive director of the Gerontology Research Group where he conducted research on supercentenarians and aging. He was also a visiting scholar in the computer science department at the University of California, Los Angeles and an assistant researcher in the Department of Surgery, at the David Geffen School of Medicine. Provided by Wikipedia