Clarence Marshall Isbell

Dallas Police Department — Dallas, TX

Felonious

End of Watch February 4, 1926

Age 25

Tour of Duty 5 mo

Badge 15

The Vigil Panel 50 ›

Gender Male

Incident Service The Sacrifice Department 94

Incident

Officer Clarence Isbell was shot and killed while attempting to stop a speeding vehicle near the intersection of Forest Avenue and Whitaker Street (Present day Parnell Street). As he pulled next to the vehicle to tell the driver to pull over, a shot was fired from inside the vehicle, striking Officer Isbell in the head. Two of the subjects fled the scene and were pursued across Texas into Arkansas over the course of several days. On the night of February 9, 1926, they fatally shot Special Agent H. H. Delmas, of the Kansas City Southern Railroad Police Department. They were both apprehended after the murder and returned to Dallas. The two subjects, who were brothers, were executed on the same day for Officer Isbell's murder. Officer Isbell had served with the Dallas Police Department for five months.

Survivors

He was survived by his wife, parents, brother, and two sisters.

In Our Keeping

Permanent identifier: BO-US-TX-2986A513
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.
Officer Isbell served with the Dallas Police Department.
Thank you for your service to the Dallas community. Gone but never to be forgotten.
Rest easy, Officer Isbell.

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

Agency

Department Dallas Police Department

Location Dallas, TX

Platform Identity dpd.dallas.tx.us.gov.nw

Service Record

End of Watch February 4, 1926

Tour of Duty 5 mo

Age 25

Badge Number 15

Gender Male

Incident Details

Cause Felonious

Weapon Gun; Unknown type

Offender Executed

Officer Clarence Marshall Isbell 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 TX, 1,463 of 2,421 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 60.4% of this state's fallen. That is 6.2 percentage points above the national rate of 54.2%.

At Dallas Police Department, 55 of 95 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 57.9% of this agency's fallen.

Dallas Police Department

of 95 officers

57.9% Felonious

TX — Statewide

1,463

of 2,421 officers

60.4% Felonious

Nationwide

17,623

of 32,508 officers

54.2% Felonious