Marvin Pepper and his family are given a tour of the Non-Destructive Inspection laboratory by Airman 1st Class Melvin Gondalez, a 28th Maintenance Squadron Fabrication Flight NDI apprentice, at Ellsworth Air Force Base, S.D., July 13, 2022. The NDI lab is dedicated to Marvin’s father, Staff Sgt. Marvin Eugene Pepper and Tech. Sgt. Blake E. Thornton, both lost their lives in the Rapid City flood of 1972. (U.S. Air Force photo by Staff Sgt. Hannah Malone)