Charles S. B. Knowles
Agency patch
Chief of Police

Charles S. B. Knowles

Seabrook Police Department — Seabrook, NH
Cardiac
End of Watch August 12, 1973
Age 57
Tour of Duty 30 yrs
The Vigil Panel 112 ›
Gender Male

Incident

Chief of Police Charles Knowles suffered a fatal heart attack when he was kicked in the chest during a struggle on Route 1.

He and another officer attempted to arrest a driver who was impaired. After placing the driver in the patrol vehicle, the female subject kicked him in the chest, triggering a heart attack. Chief Knowles was pronounced dead at the scene.

The driver was charged with driving while intoxicated, and the female was charged with assault and battery.

Chief Knowles had been chief for two years and had served with the Seabrook Police Department for 30 years.

Survivors

He was survived by his wife, two sons, and a daughter.

In Our Keeping

Permanent identifier
BO-US-NH-FBCCDE76
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

30 years. You could have gone home.
Chief of Police Knowles gave the Seabrook Police Department 30 years. Still answering calls at the end.
Thank you for your service to the Seabrook community. Gone but never to be forgotten.
Rest easy, Chief of Police Knowles.

— S. Vincent Anthony, U.S. Army 1985-1993

Agency

Location Seabrook, NH
Platform Identity seabpd.rockingham.nh.us.gov.nw

Service Record

End of Watch August 12, 1973
Tour of Duty 30 yrs
Age 57
Gender Male

Incident Details

Cause Cardiac

Chief of Police Charles S. B. Knowles is one of 1,306 officers lost to cardiac events in the line of duty across the full record of this memorial — 4% of all 32,508 officers honored here.

In NH, 14 of 59 officers were lost to cardiac events in the line of duty — 23.7% of this state's fallen. That is 19.7 percentage points above the national rate of 4%.

Seabrook Police Department
1
of 1 officers
100% Cardiac
NH — Statewide
14
of 59 officers
23.7% Cardiac
Nationwide
1,306
of 32,508 officers
4% Cardiac

National Cause Distribution

How Cardiac compares to all causes of officer death in the memorial record. Charles S. B. Knowles's cause is highlighted.

Felonious
17,623 (54.2%)
Accident
10,088 (31%)
Illness
2,974 (9.1%)
Cardiac
1,306 (4%)
Undetermined
260 (0.8%)
Suicide
256 (0.8%)
vehicular
1 (0%)

How Charles S. B. Knowles Compares

Age at End of Watch
57
This officer
Avg for Cardiac: 48.6 years
Years of Service
30
This officer
Avg for Cardiac: 15.6 years

When Cardiac Deaths Occur

Monthly distribution of Cardiac deaths across the full memorial record. Charles S. B. Knowles is highlighted in Aug.

Jan
124
Feb
105
Mar
99
Apr
116
May
115
Jun
95
Jul
94
Aug
104
Sep
109
Oct
121
Nov
113
Dec
111