C. Patricia Riesenman, 86, a leader in the Reference and User Services Association’s Machine-Assisted Reference Section (MARS, now the Emerging Technologies Section), died June 7. She chaired MARS’s Education and Training of Search Analysts Committee and the Planning Committee and was active on other committees. At Indiana University Libraries, she worked to establish the Computer-Aided Reference Service in the late 1970s and helped to found and develop the Indiana Online Users Group in 1982. She received the MARS Achievement Award in 1997 and the 2006 William Evans Jenkins Librarian Award.