Herschel Walker, center, signs an autograph for Tech. Sgt. Christopher Barker and his father Daniel Barker Oct. 23, 2013, during a recent visit to the Wilford Hall Ambulatory Surgical Center Oct. 23, 2013, at Joint Base San Antonio-Lackland, Texas. Earlier in the day, Barker was presented with the distinguished Purple Heart for wounds sustained in action. Barker is a member of the 59th Medical Wing Patient Squadron.

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Photo by: Staff Sgt. Jerilyn Quintanilla |  VIRIN: 121023-F-AK347-002.JPG