United States of America
U.S. Marine Corps · United States 
Walter Greene
2018
Walter Greene Jr. served the U.S. Marine Corps.
How He Died
Manner
Natural
Cause
Natural disease, unspecified
Mechanism
Aircraft
What Happened
Trooper First Class Walter Greene died from illnesses he contracted while inhaling toxic materials as he participated in the rescue and recovery efforts at the World Trade Center site following the terrorist attacks on September 11, 2001.
Trooper Greene and his canine, along with other members of the Connecticut State Police's search and rescue team, had responded to the World Trade Center immediately following the attacks to search for possible survivors.
Trooper Greene was a U.S. Marine Corps veteran and had served with the Connecticut State Police for 28 years.
Trooper Greene and his canine, along with other members of the Connecticut State Police's search and rescue team, had responded to the World Trade Center immediately following the attacks to search for possible survivors.
Trooper Greene was a U.S. Marine Corps veteran and had served with the Connecticut State Police for 28 years.
Survivors
He is survived by his wife and three sons.
Keepsakes
Service Record
U.S. Marine Corps
Also Served
Connecticut State Police
Trooper First Class
Also Remembered
September 11, 2001 — The Years After
In Our Keeping
Permanent identifier
neuraspine_01krbxtnzh82r2v888r94v384n
Record added
August 2, 2026
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Last updated
September 26, 2026
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