Department of Texas Marine Corps League

Sean Downey currently resides in McAllen, TX with his wife Rachelle, a highly decorated educator who has a passion for her students’ success and has one son name Tristan who lives in California.

He grew up in the Rio Grande Valley the son of a Vietnam Marine Captain. He enlisted in the Marine Corps at age 17 and upon graduation from high school, he attended Marine Corps Recruit Training in San Diego from August-December 1993. After boot camp and MCT, Sean received his MOS training as a Maintenance Management Clerk at Little Creek Naval Amphibious Base in Virginia Beach. After school, he was assigned to HQ Btry, 3rd Bn 12th Marines in Okinawa where he held the billet of Maintenance Management Chief (an E-6+ position) as a PFC, then Lance Corporal. A year later, he was transferred to HQ Co. 5th Marines in Camp Pendleton and assigned to the Regimental Maintenance Management Office and S-4.

He was honorably discharged in 1997 and settled with his wife in Fullerton, CA. Sean Worked for five years with a steel fabrication company in Irvine and Westminster until leaving the company. He accepted a job within the marketing department at Avery Dennison Office Products North America (Avery Labels, Marks-A-Lot markers, etc) in Brea, CA. He later left to become the Marketing Manager for a small manufacturer, then decided to move back to Mission, TX after his divorce in 2009. Sean has worked as a freelance marketing consultant and in the newspaper industry for 15 years in South Texas. Currently, he works full-time for the world’s leading Advertisement Management software for the newspaper industry. Sean is also a Co-Founder and Co-Owner of 5×5 Brewing Co, a craft beer brewery, along with seven other veterans.

He founded the Rio Grande Valley Detachment in 2018 and served as its Commandant for five years, had one year off, and was elected again in January of 2024. He was the Department Conventions Committee Chair for four years and has been the Department Web Sergeant for six. He served as the Department Adjutant Paymaster from 2020-2022, helping to guide the department through COVID-19, and then as Department Junior Vice Commandant from 2022-2024.