Of Annandale Virginia, passed away June 18, 2017. Beloved father of June Davis of Fredricksburg, VA, John Robert Gass of Silver Spring, MD, Sue Burson of Stafford, VA, Sam G. Gass of Alexandria, VA; brother of Evelyn Gass of Hopewell, VA, Nancy Gass Herzig of Annandale, VA; grandfather of Betty Davis Garza, Walt Davis, Daniel Gass, and Graham Burson; Companion of Jean Huston. Preceded in death by parents John Mason Gass Sr., Louise Buchanan Gass; Wife of 41 years Helen June Gass; son James A. Gass; siblings Joseph Gass, Laura Hill Herzig, and Mary Campbell. Family and friends may call at Jefferson Funeral Chapel, 5755 Castlewellan Drive, Alexandria, VA 22315, Wednesday June 21, 2017 from 2-4 and 6-8 pm where a funeral will be held the following day at 11 AM, Interment will follow at National Memorial Park. In lieu of flowers memorial contributions can be made to a charity of choice. Please view and sign the family guestbook at www.jeffersonfuneralchapel.com.