Evelyn Dorothy Preston, of Potomac, passed away on Jan. 16. Beloved wife of Alan Preston. Devoted mother of Maxwell (Sharon) Preston and Margaret Preston. Beloved sister of Eric (Hendel) Schwartz and Rosa Dina (Michael) Rozansky. Cherished grandmother of Samuel and Nathan Preston. Contributions may be made to Juvenile Diabetes Research Fund (JDRF.org). Arrangements by Hines-Rinaldi Funeral Home under Jewish Funeral Practices Committee of Greater Washington Contract.