On Saturday, March 19, 2022 Karen Ann Mason of Gaithersburg, MD formerly of Germantown, MD. Beloved of 47 years to Thomas E. Mason; loving mother of Andrew Mason (Megan), Amelia S. Mason (Craig Andrews); grandmother of Claire Lizzy and Abby. Mass of Christian Burial will be offered at St. John Neumann Catholic Church, 9000 Warfield Road, Gaithersburg, MD 20882 on Wednesday, March 30, 2022 at 11 am. Inurnment will be held at a later date at Arlington National Cemetery. Memorial contributions may be made to Basilica of the National Shrine of Immaculate Conception, 400 Michigan Avenue, Northeast Washington, D.C. 20017.