Michael Dennehy
Constable

Michael Dennehy

Felonious
End of Watch November 24, 1920
Age 27
The Vigil Panel 204 ›
Gender Male

Incident

On the evening of 23rd November 1920, about 8:30pm, Constable Dennehy was travelling from his barracks to Knockhall, County Roscommon, when he was kidnapped by armed terrorists.

He was subsequently charged and found guilty of espionage and executed the following day.

In Our Keeping

Permanent identifier
BO-GB-RIC-DC363904
Stewardship
Maintained by NeuraWeb Global Inc.
Added to badge.nw
April 8, 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.
Constable Dennehy served with the Royal Irish Constabulary.
Thank you for your service. Gone but never to be forgotten.
Rest easy, Constable Dennehy.

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

Agency

Location L
Platform Identity rico.nir.gb.gov.nw

Service Record

End of Watch November 24, 1920
Age 27
Gender Male

Incident Details

Cause Felonious
Cause Detail Homicide

Constable Michael Dennehy is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.

In L, 592 of 749 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 79% of this state's fallen. That is 24.8 percentage points above the national rate of 54.2%.

At Royal Irish Constabulary, 519 of 642 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 80.8% of this agency's fallen.

Royal Irish Constabulary
519
of 642 officers
80.8% Felonious
L — Statewide
592
of 749 officers
79% Felonious
Nationwide
17,623
of 32,508 officers
54.2% Felonious

National Cause Distribution

How Felonious compares to all causes of officer death in the memorial record. Michael Dennehy'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 Michael Dennehy Compares

Age at End of Watch
27
This officer
Avg for Felonious: 39.0 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Michael Dennehy is highlighted in Nov.

Jan
1,392
Feb
1,295
Mar
1,373
Apr
1,517
May
1,505
Jun
1,443
Jul
1,587
Aug
1,516
Sep
1,553
Oct
1,371
Nov
1,447
Dec
1,624

Weapons Used Against Officers

Most common weapons in felonious officer deaths.

Gun; Unknown type
5,083
Handgun
2,077
Shotgun
922
Officer's handgun
909
Automobile; Alcohol involved
530
Rifle
518