Lengkepan kalimah di handap ieu: Dina pangsiun, Gehman geus dilayanan salaku pupuhu Columbia kacilakaan Panalungtikan Board, ko-pupuhu, jeung pensiunan umum William W. Crouch, ti Departemen Pertahanan urang
Komisi Cole, dina panitia Base Realignment and Closure (BRAC), sarta mangrupakeun Senior Fellow of the National Defense University's Capstone Program.