Retirement ceremony for Master Sgt. Jeffrey Walton Published July 27, 2010 VANCE AIR FORCE BASE, Okla. -- Congratulations and good luck on your retirement Master Sgt. Jeffrey Walton. Thank you for your service. Time in service: 26 years Retirement ceremony: 2 p.m., Friday, Aug. 6, at the Vance Collocated Club. A reception will follow. For more information and to RSVP, contact Master Sgt. Lori Shackleford, 213-5107.