Major General Crenshaw is a native of Pensacola, Florida. He was commissioned a Second Lieutenant in the United States Marine Corps in August 1984 through the NROTC Scholarship Program.
He holds a Bachelor of Arts Degree in Political Science from Southern University, Baton Rouge, Louisiana; a Master of Arts in Procurement and Acquisitions Management from Webster University, St. Louis, Missouri; a Master of Science in National Resource Strategy from the Industrial College of the Armed Forces, National Defense University, Washington, D.C.; and is a graduate of the Senior Acquisition Course and the Program Manager Course from the Defense Acquisition University. He served as a Congressional Intern to the Honorable Earl Hutto (D-FL, Ret.).
Major General Crenshaw began his career as a Logistics Officer with 3d Force Service Support Group, Okinawa, Japan from June 1985 to July 1986. He served as Platoon Commander, Maintenance Management Officer and Assistant Logistics Officer. In 1986, he was reassigned to 1st Recruit Training Battalion, Marine Corps Recruit Depot San Diego, California where he served as a Series Commander and Battalion Operations Officer. In September 1989, he was assigned to 1st Marine Regiment, 1st Marine Division, Camp Pendleton, California where he served as Assistant Logistics Officer and Maintenance Management Officer. While assigned to 1st Marine Regiment, he deployed to the Persian Gulf region in support of Operation Desert Shield/Desert Storm and also participated in Special Purpose Marine Air Ground Task Force Los Angeles in response to the civil disturbance during the Los Angeles riots.
In September 1992, Major General Crenshaw was assigned to the Program Executive Office for Cruise Missiles and Unmanned Aerial Vehicles, Washington, D.C. He served as the Marine Corps Integrated Logistics Support Manager and Deputy Director, Joint Logistics Program, Joint Logistics Directorate.
Major General Crenshaw was reassigned in 1995 to Marine Aircraft Group 36, 1st Marine Aircraft Wing, Okinawa, Japan, where he served as the Group Logistics Officer. While assigned to the command, he participated in numerous regional exercises including Cobra Gold, Tandem Thrust, and Ulchi Focus Lens, among others.
Following this assignment, Major General Crenshaw was selected to attend the Marine Corps Command and Staff College, Quantico, Virginia. Upon graduation, he was assigned to the Defense Foreign Liaison Division, Defense Intelligence Agency, Washington, D.C. as an Executive Agent to the Secretary of Defense and Chairman of the Joint Chiefs of Staff.
In June 2002, Major General Crenshaw was assigned to 2d Force Service Support Group, Camp Lejeune, North Carolina where he assumed command of Headquarters and Service Battalion and deployed in support of Operation Iraqi Freedom.
In August 2004 Major General Crenshaw was selected to attend the Industrial College of the Armed Forces, National Defense University in Washington, D.C. Subsequently, he was assigned to the Joint Chiefs of Staff, Joint Logistics Directorate, as the Division Chief, Joint Logistics Operations Center, the Pentagon, Washington, D.C.
In June 2007 he was assigned to Headquarters Marine Corps Installations and Logistics as Special Assistance to Assistant Deputy Commandant, I&L, Logistics Facilities for Defense Policy Review Initiatives.
In June 2008, Major General Crenshaw assumed command of Combat Logistics Regiment 25, 2d Marine Logistics Group, II MEF. He was subsequently assigned as the Commanding General, 3d Marine Logistics Group, III MEF, Okinawa, Japan in June 2010.
In August 2012, Major General Crenshaw was assigned as the Vice Director J4 Joint Staff, Pentagon, Washington, DC.
In October 2013, Major General Crenshaw was assigned as the Assistant Deputy Commandant, Installations and Logistics (LP) HQMC.
In May 2015, Major General Crenshaw assumed his current position as the Commanding General, Marine Corps Logistics Command, Albany, Georgia.
Major General Crenshaw's personal awards and decorations include the Defense Superior Service Medal, the Legion of Merit, the Bronze Star, Defense Meritorious Service Medal with oak leaf cluster in lieu of second award, Meritorious Service Medal, Joint Service Achievement Medal, Navy and Marine Corps Achievement Medal, Combat Action Ribbon, and numerous unit awards and citations.