Don Engebretsen, left, photographed at the 2013 Special Operations Association Reunion (SOAR XXXVII) in Las Vegas, wearing the credential that records his member number, 3133. Engebretsen is the source of this photographic collection, and appears throughout it both behind and in front of the camera. The attendee at right wears the reunion's TEMPORARY badge, issued to day visitors and late registrants, with a University of Pennsylvania engineering polo shirt. Project: 219854