Sergeant Major Henderson, a native of Conroe, Texas, enlisted in the Marine Corps in April 2004 and attended recruit training at Marine Corps Recruit Depot in San Diego, California. He completed training at Marine Combat Training School at Camp Pendleton. Following MCT, he reported to Basic Engineer Equipment Operators School, Fort Leonard Wood, Missouri, and received the MOS of 1345 upon graduation.
In October 2004, he executed orders to Marine Wing Support Squadron 171, Iwakuni, Japan, where he served as an Engineer Equipment Operator. In July 2005, he was promoted to the rank of Lance Corporal. In February 2006, he deployed to Ramadi, Iraq in support of Operation Iraqi Freedom. In October 2006, he was promoted to the rank of Corporal.
In November 2006, he was assigned to 9th Communication Battalion, where he deployed to Fallujah, Iraq, in support of Operation Iraqi Freedom. In March 2008, he was promoted to the rank of Sergeant meritoriously. In April 2009, he reported to Drill Instructor School, Marine Corps Recruit Depot, Parris Island. Upon graduation he was assigned to Bravo Company, 1st Battalion serving as a Drill Instructor and Senior Drill Instructor.
In November 2012, he reported to Combat Logistics Battalion 5, Camp Pendleton, California, where he served as the Heavy Equipment Operations Chief. In March 2013, he was promoted to the rank of Staff Sergeant and served as the Company Gunnery Sergeant for Transportation Company. In June 2015, he received orders to Marine Expeditionary Force G-4 as the Engineer Equipment Coordinator.
In September 2017, he was promoted to the rank of Gunnery Sergeant. In January 2018, he reported for duty to 9th Engineer Support Battalion where he served as the Heavy Equipment Operations SNCOIC, Company Gunnery Sergeant, and Maintenance Chief during his tour. In January 2020, he deployed as the Operations Chief in support of the Joint United States Military Advisory Group in the Philippines. Upon his return, he executed orders to Marine Wing Support Squadron 172 as the Company First Sergeant for Engineer Company.
In May 2021, he was promoted to the rank of First Sergeant and reported to the 7th Communication Battalion, where he served as the Company First Sergeant for Company B. In June 2022, he was reassigned as the Headquarters Company First Sergeant. In April 2023, he received orders to Headquarters and Support Battalion, MCIPAC and served as the Alpha Company First Sergeant.
In May 2024, he was promoted to his current rank of Sergeant Major and reported to 3d Battalion, 12th Marines where he currently serves as the Command Senior Enlisted Leader. His personal awards include the Meritorious Service Medal, Navy and Marine Corps Commendation Medal (3rd award), Navy and Marine Corps Achievement Medal (4th award), and Combat Action Ribbon. SgtMaj Henderson earned a bachelor’s degree in health and wellness through Purdue University Global.