Public broadcasting pioneer David Ives died on Friday while visiting family in San Francisco. Ives was president of WGBH in Boston during their formative years. Under his tenure, WGBH became the largest supplier of programming for PBS, delivering such classics as ”Nova,” ”Frontline,” ”Masterpiece Theatre,” ”Evening at Pops,” ”This Old House,” ”The Victory Garden,” and ”Mystery!” His bow tie and half moon glasses were familiar to local pledge drive and auction viewers. He served as a trustee of my alma mater, Wellesley and spent much of his retirement continuing his work in public service.