Roll of Honor
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
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 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
Service Record
Incident Details
Officer Clarence Marshall Isbell is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,772 officers honored here.
In TX, 1,461 of 2,422 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 60.3% of this state's fallen. That is 60.3 percentage points above the national rate of 0%.
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.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Clarence Marshall Isbell's cause is highlighted.
How Clarence Marshall Isbell Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Clarence Marshall Isbell is highlighted in Feb.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Clarence Marshall Isbell was killed by gun.
Incident Location
Others Who Wore This Badge
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