The Navy SEALs have seen a number of those among their ranks make the ultimate sacrifice for their country. Among those who made that sacrifice was John W. Marcum.

John Marcum hails from Flushing, Michigan, and finished high school at Flushing Senior High School. On August 5, 1991, Marcum enlisted in the Navy and headed straight to Recruit Training Command in Orlando, Florida, on the very same day. Upon completion of basic training, he then moved on to the Navy and Marine Corps Intelligence Training Center in Dam Neck, Virginia, and then proceeded to BUD/S. He was a member of BUD/S Class 186. After BUD/S, Marcum proceeded with Basic Airborne School in Fort Benning, Georgia, before being deployed to his first permanent duty station at SEAL Team Two at Naval Amphibious Base, in Little Creek, Virginia.

As part of SEAL Team Two, John Marcum honed more advanced skills in preparation for combat assignments, including sniper training, DoD Hostage Survival, and SEAL diving. He set himself apart while on multiple combat deployments in support of Joint Army and NATO operations.

By March 2000, Marcum had moved on from SEAL Team Two to undergo training in highly advanced and specialized skills, which included Military Free-Fall Parachuting, Emergency Medical Response, Survival, Escape, Resistance and Evasion courses, and Advanced Pistol and Rifle, among others. Upon completion of these advanced skills training, he received orders to Naval Special Warfare Tactical Development and Evaluation Squadron 2.

He was with the Naval Special Warfare Development Group deployed to Afghanistan as part of Operation Enduring Freedom when, on September 11, 2008, he succumbed to injuries he sustained during combat operations. He was 34.

Marcum left behind his wife Cynthia and daughter Madison, as well as his parents. Among the recognition that Marcum received during the course of his military service are 4 Bronze Star medals, Joint Service Commendation medal, and Navy and Marine Corps Commendation medals.