Dr. Kenneth Ray Greenberg of Silver Spring, MD on Friday, July 28, 2017. Beloved husband of Betty for 30 years; devoted father of the late Scott David Greenberg; step-father of Karen (Gregory) Oltman, Suzanne (Daryl) Charton and Jennifer Brandt Bohnett (James); and loving grandfather of Garrett, Ashley, Austin, Alexandra, Paxton, Madeline and Brandt. He was a professor at the University of Maryland, College Park for many years. A graveside service will be Wednesday at 11 a.m., at Judean Memorial Gardens, Olney MD. Donations in his memory can be made to the American Diabetes Association.