DD
U.S. Marine Corps · United States 
David Delaney
2012
David Richard Delaney served the U.S. Marine Corps.
How He Died
Manner
Natural
Cause
Natural disease, unspecified
What Happened
Border Patrol Agent David Delaney died after suffering a medical emergency while on foot patrol in Brewster County, Texas.
He was in the process of hiking to a location near Big Bend National Park to setup a camera when he suffered the medical emergency.
Agent Delaney was a veteran of both the United States Army and the United States Marine Corps. He had served with the United States Border Patrol for 10 years and was assigned to the Big Bend Sector.
He was in the process of hiking to a location near Big Bend National Park to setup a camera when he suffered the medical emergency.
Agent Delaney was a veteran of both the United States Army and the United States Marine Corps. He had served with the United States Border Patrol for 10 years and was assigned to the Big Bend Sector.
Survivors
He is survived by his wife, son, and two daughters.
Service Record
U.S. Marine Corps
Also Served
United States Department of Homeland Security - Customs and Border Protection - United States Border Patrol
Border Patrol Agent
In Our Keeping
Permanent identifier
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Record added
August 2, 2026
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Last updated
August 2, 2026
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