Dewitt Clinton Cooley
Agency patch
Deputy Sheriff

Dewitt Clinton Cooley

Felonious
End of Watch September 15, 1915
Age 54
Tour of Duty 3 yrs
The Vigil Panel 30 ›
Gender Male

Incident

Deputy Dewitt Cooley was killed while checking the locks on the cells in the jail. One of the prisoners had managed to pry open his cell door with a crowbar and struck Deputy Cooley from behind. Deputy Cooley lay unconscious for several hours until his wife came to the jail and found him. She was also attacked by the three escaping prisoners and was critically wounded but recovered after several weeks in a hospital.

The prisoner who dealt the death blow was convicted of Deputy Cooley's murder and sentenced to life. On January 17, 1918, he escaped from Granite Penitentiary and was never seen again.

In Our Keeping

Permanent identifier
BO-US-OK-DA76181A
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.
Deputy Sheriff Cooley gave the Tulsa County Sheriff's Office 3 years.
Thank you for your service to the Tulsa community. Gone but never to be forgotten.
Rest easy, Deputy Sheriff Cooley.

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

Agency

Location Tulsa, OK
Platform Identity tcso.tulsa.ok.us.gov.nw

Service Record

End of Watch September 15, 1915
Tour of Duty 3 yrs
Age 54
Gender Male

Incident Details

Cause Felonious

Deputy Sheriff Dewitt Clinton Cooley 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 OK, 403 of 582 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 69.2% of this state's fallen. That is 15 percentage points above the national rate of 54.2%.

At Tulsa County Sheriff's Office, 8 of 11 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 72.7% of this agency's fallen.

Tulsa County Sheriff's Office
8
of 11 officers
72.7% Felonious
OK — Statewide
403
of 582 officers
69.2% 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. Dewitt Clinton Cooley'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 Dewitt Clinton Cooley Compares

Age at End of Watch
54
This officer
Avg for Felonious: 39.0 years
Years of Service
3
This officer
Avg for Felonious: 8.5 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Dewitt Clinton Cooley is highlighted in Sep.

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