12th Marine Corps District Biographies

Major Adam C. Sanchez

Press Operations — Thu, 12 Jun 2025 21:06:00 GMT

Major Sanchez is a native of Austin, TX. He enlisted in the Marine Corps in July 2002 and attended

Sergeant Major Ricardo G. Lomeli

Press Operations — Fri, 28 Jun 2024 03:14:00 GMT

Sergeant Major Lomeli enlisted in the Marine Corps on September 13th, 2004 and attended Recruit

Sergeant Major Ricardo G. Lomeli

Press Operations — Fri, 28 Jun 2024 03:14:00 GMT

Sergeant Major Lomeli was born on November 19th, 1985 in Pomona, California. He enlisted in the

Colonel Jerome C. Greco

Press Operations — Wed, 12 Jun 2024 15:46:00 GMT

Colonel Greco was born in Mt. Kisco, New York in 1980. He is a 2003 graduate of the University of

Sergeant Major Gilberto CastilloGuzman

Press Operations — Tue, 27 Feb 2024 17:21:00 GMT

Sergeant Major Castillo was born and raised in Bayamon, Puerto Rico. He enlisted in the Marine Corps

Major Johnathan C. Weber

Press Operations — Tue, 13 Jun 2023 13:03:00 GMT

Major Weber was born and raised in Omaha, Nebraska. He reported to Officer Candidate School,

Sergeant Major Sergio A. Zaratecortina

Press Operations — Mon, 06 Mar 2023 21:32:00 GMT

Sergeant Major Zaratecortina, a proud native of Gonzales, California, answered the call to serve and

Master Sergeant Dominic Torres

Press Operations — Tue, 06 Dec 2022 22:49:00 GMT

Master Sergeant Dominic D. Torres currently serves as the Recruiter Instructor for Prior Service

Master Sergeant Carlos Cavazos

Press Operations — Tue, 06 Dec 2022 22:43:00 GMT

Official Biography Coming Soon

Major Sean Knaub

Press Operations — Tue, 06 Dec 2022 22:37:00 GMT

Major Sean M. Knaub grew up in Irwin, Ohio and was commissioned a second lieutenant through the

Major Patrick Kolb

Press Operations — Fri, 02 Dec 2022 17:20:00 GMT

Major Patrick Kolb is a native of Riverside, California. In 2013, he graduated from The Citadel with

Sergeant Major Kimberly D. Barton

Press Operations — Fri, 02 Dec 2022 17:17:00 GMT

Sergeant Major Barton was born and raised in Chicago, Illinois. She enlisted in the Marine Corps in

Major Seth K. Kellogg

Press Operations — Fri, 02 Dec 2022 17:16:00 GMT

Major Seth K. Kellogg enlisted in the Marine Corps Reserve in October of 2008, and graduated Boot

Sergeant Major Bryan A. Crane

Press Operations — Fri, 02 Dec 2022 17:14:00 GMT

Sergeant Major Crane is from Billings, Montana and enlisted into the Marine Corps in 2004. He

Major Zachary R. Bombria

Press Operations — Fri, 02 Dec 2022 17:12:00 GMT

Major Zachary R. Bombria graduated from Fitchburg State University in 2013 with a bachelor’s degree

Sergeant Major Mike R. Gonzalez

Press Operations — Fri, 02 Dec 2022 17:10:00 GMT

Sergeant Major Gonzalez enlisted in the Marine Corps in January 2004. He completed recruit training

Major Joshua M. Lewis

Press Operations — Fri, 02 Dec 2022 17:05:39 GMT

Major Joshua M. Lewis is a native of Alexandria, Minnesota. He enlisted in the United States Marine

Major Kevin S. Vanous

Press Operations — Fri, 02 Dec 2022 17:00:00 GMT

Major Vanous was born in Fredericksburg, Virginia, and attended Saint Anselm College, graduating

Sergeant Major Andrew W. Brown

Press Operations — Fri, 02 Dec 2022 16:55:00 GMT

Sergeant Major Brown enlisted in the Marine Corps in Vancouver, Washington and attended recruit

MAJ BRIAN J. BERLING

Press Operations — Fri, 02 Dec 2022 16:53:00 GMT

Major Brian Berling was born in Cincinnati, Ohio. He holds a Bachelor of Science and a Master of