Roll of Honor
Alfonse Joseph Niedermeyer III
Incident
Officer Alfonse Niedermeyer was killed in the September 11, 2001, terrorist attacks while attempting to rescue the victims trapped in the World Trade Center.
He was last seen rushing into the South Tower.
Officer Niedermeyer had served with the Port Authority of New York and New Jersey Police Department for 17 years. In 1992, he received a citation for rescuing passengers from a US Airways jet that skidded off a runway at LaGuardia Airport. He was survived by his expectant wife and son. His daughter was born in May 2002.
September 11, 2001
Police Officer Alfonse Joseph Niedermeyer III was killed at the World Trade Center on the morning of September 11, 2001. He was 40 years old.
He is one of 72 officers honored here, and one of 37 at Port Authority of New York and New Jersey Police Department.
Seventy-two law enforcement officers from eight local, state, and federal agencies were killed at the World Trade Center on the morning of September 11, 2001, alongside 343 members of the New York City Fire Department and more than 2,800 civilians. A fourth aircraft went down in a field near Shanksville, Pennsylvania, where a law enforcement officer aboard was among the dead.
Officers went into the towers while everyone else was coming out. More than 25,000 people reached safety because they did.
Survivors
He was survived by his expectant wife and son.
In Our Keeping
- Permanent identifier
BO-US-NY-72202CDA- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 tribute.
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Tributes
You went in while everyone else was coming out.
Police Officer Niedermeyer gave the Port Authority of New York and New Jersey Police Department 17 years.
Thank you for your service to the Jersey City community. Gone but never to be forgotten.
Rest easy, Police Officer Niedermeyer.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Officer Alfonse Joseph Niedermeyer III is one of 1 officers lost to illness connected to their service across the full record of this memorial — 0% of all 97,759 officers honored here.
In NJ, 112 of 646 officers were lost to illness connected to their service — 17.3% of this state's fallen. That is 17.3 percentage points above the national rate of 0%.
At Port Authority of New York and New Jersey Police Department, 53 of 60 officers on record were lost to illness connected to their service — 88.3% of this agency's fallen.
National Cause Distribution
How Illness compares to all causes of officer death in the memorial record. Alfonse Joseph Niedermeyer III's cause is highlighted.
How Alfonse Joseph Niedermeyer III Compares
When Illness Deaths Occur
Monthly distribution of Illness deaths across the full memorial record. Alfonse Joseph Niedermeyer III is highlighted in Sep.
Incident Location
Others Who Wore This Badge
59 officers from Port Authority of New York and New Jersey Police Department are honored on badge.nw. Showing the 16 most recent.
