Clarence Marshall Isbell
Agency patch
Officer

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 116 ›
Gender Male

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

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Stewardship
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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

Type Police Department
Location Dallas, Collin County, 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

The Sacrifice · Felonious

Clarence is one of 15,743 officers killed feloniously in the United States, 57.1% of the 27,551 remembered there.

34,117 officers are remembered on this memorial. Each number below is one of them.

  1. See the roll
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Compare against
I

Time

In 1926, 209 officers in the United States were killed feloniously, the 9th heaviest of 213 years on record. The heaviest was 1921, with 248.

Every year on record · United States
II

Who

Clarence was 25. Of the 14,220 killed feloniously in the United States whose age is recorded, half were between 31 and 47; the middle age was 38. Clarence had served 0.4 years; the middle length of service was 6 years.

Age at death
Where he stood among them
Age by years of service
III

When

February holds 7.4% of these deaths in the United States; December holds the most, 9.4%. Thursdays: 14%.

By month
By day of the week
IV

How

Felonious deaths account for 57.1% of all 27,551 deaths in the United States, the most common cause. The weapon recorded was gun, in 22.8% of these deaths.

Every cause
Weapons recorded
V

His people

Dallas Police Department has 95 officers remembered here, Clarence among them.

Across the years
VI

Where

Officer Clarence Marshall Isbell

Dallas Police Department · End of Watch February 4, 1926

Where the Name Is Cut

National Law Enforcement Officers Memorial · Panel 59-W

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