Colonel David L. Bishop was commissioned a Field Artillery Officer upon graduation from Officer Candidate School, Class 1-60-NG, 2 May 1960. His first duty assignment was as a Field Artillery Battery Motor Officer, Service Battery, 2d Howitzer Battalion, 111th Field Artillery, Virginia Army National Guard (VaARNG), Richmond, Virginia. | His subsequent duty assignments include: Assistant Battery Executive Officer, Battery C, 2d Howitzer Battalion, 111th Field Artillery, Richmond, Virginia and Fort Campbell, Kentucky; Battery Executive Officer, Battery C, 2d Howitzer Battalion, 111th Field Artillery, Richmond, Virginia; Commander, Assistant S-3, S-2, and Battalion Motor Officer; Headquarters & Headquarters Battery (HHB), 2d Howitzer Battalion, 111th Field Artillery, Richmond, Virginia;  S-4, HHB 224th Field Artillery Group, Sandston, Virginia; Information Officer, Headquarters & Headquarters Detachment (HHD), VaARNG, Richmond, VA; Supply Management Officer, HHD, VaARNG, Richmond, Virginnia; Assistant Chief of Staff, Logistics & Services, Assistant Chief of Staff, Maintenance, and Executive Officer, U.S. Property and Fiscal Office (USPFO), Headquarters, State Area Command (STARC), Richmond, Virginia. | Colonel Bishop was serving as the United States Property & Fiscal Officer for Virginia, Chief, National Guard Bureau, Richmond, Virginia, at the time of his induction.