Roll of Honor
Incident
Supervisor O'Neil was killed in an automobile accident while responding to backup another officer at a burglary-in-progress call. Supervisor O'Neil's patrol car skidded into a tree on Turnpike Road near the Silver Ranch area.
Survivors
Supervisor O'Neil had been with the agency for six years and was survived by his wife and two children.
In Our Keeping
- Permanent identifier
BO-US-NH-C610A727- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Police Supervisor O'Neil gave the Jaffrey Police Department 6 years.
Thank you for your service to the Jaffrey community. Gone but never to be forgotten.
Rest easy, Police Supervisor O'Neil.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Supervisor William E. O'Neil, Sr. is one of 10,088 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,508 officers honored here.
In NH, 16 of 59 officers were lost to accidents in the line of duty — 27.1% of this state's fallen. That is 3.9 percentage points below the national rate of 31%.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. William E. O'Neil, Sr.'s cause is highlighted.
How William E. O'Neil, Sr. Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. William E. O'Neil, Sr. is highlighted in Aug.