Sergeant Major Lumm enlisted in the Marine Corps in 1996 and reported to recruit training at Marine Corps Recruit Depot San Diego. After graduating in July 1996, he attended infantry training at the School of Infantry-West, Infantry Training Battalion where he earned the military occupation specialty of 0311, Basic Rifleman.
Sergeant Major Lumm's FMF assignments include: team leader, squad leader, and company scout leader, Company B, 3rd Light Armored Reconnaissance Battalion, 1st Marine Division, 29 Palms, California; squad leader and platoon sergeant, Company L, 3rd Battalion 6th Marines, 2d Marine Division, Camp Lejeune, North Carolina; squad leader, platoon sergeant, and company gunnery sergeant, Company A, 1st Battalion 6th Marines, 2d Marine Division, Camp Lejeune, North Carolina; weapons platoon sergeant, company gunnery sergeant, and company first sergeant, Company C, 1st Battalion 9th Marines, 2d Marine Division, Camp Lejeune, North Carolina, Battalion Sergeant Major, Combat Logistics Battalion 6, 2d Marine Logistics Group, Camp Lejeune, North Carolina.
Sergeant Major Lumm's supporting assignments include: rifleman and team leader, Silent Drill Platoon, Company A, Marine Barracks Washington, District of Columbia; instructor, Camp Gonzalves, Okinawa, Japan; drill instructor, Company B, 1st Recruit Training Battalion, Parris Island, South Carolina; canvassing recruiter, staff noncommissioned officer-in-charge, and recruiter instructor, Recruiting Station Sacramento, California, 12th Marine Corps District; company first sergeant, Company B, Marine Barracks Washington, District of Columbia; Recruiting Station Sergeant Major, Recruiting Station Frederick, Maryland, 4th Marine Corps District.
Sergeant Major Lumm's professional military education includes: Basic Rifleman, Camp Pendleton, California; Corporals Course, Okinawa, Japan; Drill Instructor School, Parris Island, South Carolina; Marine Corps Instructor of Water Survival, Parris Island; Infantry Unit Leaders Course, Camp Geiger, North Carolina; Advanced Course, SNCO Academy Camp Johnson, North Carolina; Basic Recruiters Course, San Diego, California; Senior Enlisted Joint Professional Education I, Joint Knowledge Online; First Sergeant/Master Sergeant Seminar, SNCO Academy Quantico, Virginia; First Sergeants Course, SNCO Academy Quantico, Virginia; Naval Justice Senior Enlisted Leadership Course, SNCO Academy Quantico, Virginia; Senior Enlisted Leadership Course, SNCO Academy Quantico, Virginia; Recruiter Management Course, Marine Corps Recruiting Command, Leesburg, Virginia; Cornerstone, Commandants Combined Commandership Course, Quantico, Virginia.
His personal decorations include: Bronze Star Medal; Meritorious Service Medal (3rd award); Navy and Marine Corps Commendation Medal (2nd award with combat distinguishing device); Navy and Marine Corps Achievement Medal (3rd award with combat distinguishing device); Combat Action Ribbon (2nd award).