On Thursday, December 31, 2015, of Rockville, MD. Beloved wife of the late Nicholas G. Pistolas, M.D.; devoted mother of George R. Pistolas (Marji), Nikki I. Jansen (the late Ben Jansen), Paul T. Pistolas (Susan), and James J. Pistolas (Brenda); much loved grandmother of twelve including the late Ryan Jansen; cherished great-grandmother of 12. Relatives and friends may call at Collins Funeral Home, 500 University Boulevard West, Silver Spring, MD, (Valet Parking), Thursday, January 7, from 2 to 4 and 7 to 9 p.m. Funeral Service at Collins Funeral Home on Friday, January 8, at 11 a.m. Interment Gate of Heaven Cemetery.