Sean T. Quinlan was born on July 31, 1963. He was raised in Scottville, Michigan graduating from Mason County Central High School in 1981. He graduated with Honors from Central Michigan University with a Bachelors of Science degree in 2001. He enlisted in the Marine Corps on December 17, 1985 and shipped to recruit training, MCRD San Diego.
Upon completion of recruit training and training at SOI, Pfc. Quinlan was assigned to Bravo Co., 3rd LAV Bn., 1st MarDiv and was promoted to Lance Corporal, meritoriously to corporal and then promoted to sergeant.
In January 1991 PFC Sackett was assigned to Combat Replacement Company 13 and participated in Desert Shield and Desert Storm. Upon his return from Saudi Arabia he was reassigned to 1st Light Armored Reconnaissance Battalion, Camp Pendleton, California where he served as a was a Driver, Gunner, and Vehicle Commander and was meritoriously promoted to Cpl. He attended the Battalion Master Gunners Course and was Company Master Gunner. He then attended Marine Combat Instructor for Water Survival picking up the MOS of 8563 and graduated as the moral leadership award winner, He also attended airborne school. Sent to School of Infantry in 1993 for 9 months on the Fleet Assistance Program and served as a Troop Handler from March of 1993 –December 1993, then re joined 1st LAR; Reenlisted was promoted to Sgt and deployed in 1994 as a Vehicle Commander with BLT 1/4 and the 15th MEU January 1994 - May 1995.
Upon returning from deployment Sgt Sackett went to Drill Instructor School, in San Diego and became a Drill Instructor in Golf Company 2nd Recruit Training Battalion, where he served as Drill Instructor and Senior Drill Instructor from 1995-1997. Sgt Sackett was meritoriously promoted to SSgt prior to finishing his tour in July 1997.
SSgt Sackett was then sent to 2nd LAR Camp Lejeune, North Carolina in August 1997 where he served as Platoon Sergeant and Platoon Commander. SSgt Sackett deployed again with the 26th MEU in 1999 where they went to Kosovo. He also attended the Staff Academy and was by name requested for orders, and departed Camp Lejeune in March of 2000.
SSgt Sackett joined Marine Barracks 8th and I and marched the 2000 parade season with Alpha Company as the Platoon Sergeant of 1st Platoon. In January 2001 He was sent to Camp David, Maryland to serve as the Guard Chief at the Presidential Retreat. There he was promoted to GySgt in November 2001. He then became the Company Gunnery Sergeant at Camp David and attended the Advanced Course, graduating as the Honor Graduate in 2003. He was then selected to 1stSgt and departed the Presidential Retreat in March 2005 and checked into 2nd Battalion 6th Marines were he served three years. At 2nd Battalion 6th Marines he deployed twice to Fallujah, Iraq in 2005/6 and 2007 as Weapons Company 1stSgt.
In January 2008 1stSgt Sackett was assigned to School of Infantry-East for duty as Golf Company 1stSgt. At Marine Combat Training Battalion he supervised the instruction of 14 classes and some 5,600 students in basic combat skills. 1stSgt Sackett was selected in October of 2009 to the rank of SgtMaj.
SgtMaj Sackett’s personal decorations include Meritorious Service Medal, Navy Commendation Medal, Navy Achievement with Combat V and three Gold Stars.
SgtMaj Sackett has been married to the former Jena Neiman of West Point Nebraska for the last 18 years and together they have three children Jessi (14) Jake, and Jack (7)