Marlene G. Diener of Silver Spring, MD, passed away on Friday, June 11, 2021, at the age of 89. Beloved wife of the late Allan L. Diener; devoted mother of Howard (Laura), Steven (Laurie), Bobby (Giselle) and the late Lawrence; loving grandmother of Kalin (Matt), Sean, Colin (Kelly), Micayla, Sam (Rachel), Gabrielle, Nicole (Kevin) and Hayley; cherished great-grandmother of Zoe, Molly and Anthony. Funeral services will be held privately. In lieu of flowers, memorial contributions may be made to the Diener School, www.thedienerschool.org .