Sergeant Major Kirkby reported to Marine Corps Recruit Depot Parris Island, South Carolina in October 1995 for recruit training. Upon graduation, she reported to Disbursing School, Camp Johnson, North Carolina in 1996. Later she was assigned to 1st Marine Logistic Group in Camp Pendleton, CA. She worked as a Pay and Separations clerk where she was meritoriously promoted to the rank of Corporal.
In May of 1999 she was promoted to the rank of Sergeant and soon after reported for Drill Instructor duty. In December of 1999, Sergeant Major Kirkby graduated from Drill Instructor School and was assigned to Oscar Company, 4th Battalion. She completed her tour as a Drill Instructor with 9 cycles. Her billets included Drill Instructor, Experienced Drill Instructor and Series Gunnery Sergeant. While on quota at Receiving Company she was meritoriously promoted to the rank of Staff Sergeant.
In May of 2004, Sergeant Major Kirkby was then assigned to 2nd Marine Logistics Groups as the Company Gunnery Sergeant for Headquarters Company. She deployed in Support of Operation Iraqi Freedom to Al Taqaddum, Iraq in February 2005 thru February 2006.
In April 2006, Sergeant Major Kirkby received orders to Quantico, VA, as the Travel SNCOIC. Soon after checking into Disbursing she went to serve as an augment at Officer Candidate School. After the summer cycle was complete she was then reassigned as permanent personnel. While assigned to Officer Candidate School she filled billets of Sergeant Instructor, Platoon Sergeant, Company Gunnery Sergeant, and Company First Sergeant for a total of 8 cycles.
She was promoted to the rank of First Sergeant in 2010.
In January 2011 Sergeant Major Kirkby was assigned to Communications Company, Combat Logistics Regiment-17, 1st Marine Logistics Group, Camp Pendleton, CA. Approximately a year later she assigned to Headquarter Company, Combat Logistics Battalion-1, 1st Marine Logistics Group where she deployed in support of Operation Enduring Freedom to Camp Dwyer, Afghanistan. Upon return she was assigned to Support Company, Combat Logistics Battalion-1.
In February 2013 Sergeant Major Kirkby was assigned to Instructional Training Company, Support Battalion, Recruit Training Regiment MCRD, SD for duty as the Company First Sergeant. In June of 2014 she assumed the billet of Support Battalion Sergeant Major. In September of 2015 she was promoted to her current rank of Sergeant Major.
In January 2016 was assigned to Marine Medium Tiltrotor Squadron (VMM-161), MAG-16, 3rd MAW as the Squadron Sergeant Major. While there she deployed with the 15th Marine Expeditionary Unit as the ACE Sergeant Major. In November 2018 upon return she was assigned as the Regimental Sergeant Major for Combat Logistics Regiment-17 where she is currently serving.
Sergeant Major Kirkby’s personal awards include the Meritorious Service Medal (two gold stars), the Navy and Marine Corps Commendation Medal (one gold star), the Navy and Marine Corps Achievement Medal.