Fairfax residents Barb and John Hefferan are ready for lunch and a slice of veterans appreciation cake in the MISSION BBQ restaurant at 13067 Lee Jackson Memorial Hwy. in Chantilly Nov. 11. John Hefferan, 80, served nearly two decades in active duty for the U.S. Air Force. He started as an airman basic in 1960 and worked his way up to major by the time he retired in the early 1980s.