Dewey Marshall
Agency patch
Deputy Sheriff

Dewey Marshall

Polk County Sheriff — Des Moines, IA
Felonious Veteran
End of Watch October 30, 1926
The Vigil Panel 52 ›
Gender Male

Incident

Deputy Sheriff Dewey Marshall was shot and killed while accompanying the sheriff of Sedalia, Pettis County, Missouri, to serve a warrant that had been issued on a man in Mitchellville, Iowa. When the officers arrived at the man's rented farmhouse one-half mile northwest of Mitchellville, the man fatally shot Deputy Marshall and wounded the Pettis County sheriff. The man took Deputy Marshall's weapon and fled into a field. The suspect, who was wanted on a hog-stealing charge, surrendered himself to the sheriff ten days later. He was convicted of first-degree murder and sentenced to life in prison on December 17th, 1926. He was paroled in January of 1960. Deputy Marshall was a crack-shot WWI Army veteran.

Survivors

He was survived by his wife and four-year-old daughter.

In Our Keeping

Permanent identifier
BO-US-IA-262AF394
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 served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Deputy Sheriff Marshall served with the Polk County Sheriff's Office.
Thank you for your service to the Des Moines community, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.

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

Agency

Department Polk County Sheriff
Location Des Moines, IA
Platform Identity polkso.polk.ia.us.gov.nw

Service Record

End of Watch October 30, 1926
Gender Male

Incident Details

Cause Felonious
Weapon Shotgun
Offender Paroled in 1960

Military Service

Dewey Marshall served in the United States military before joining law enforcement. Full service record available on salute.nw.

Deputy Sheriff Dewey Marshall 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 IA, 129 of 226 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 57.1% of this state's fallen. That is 2.9 percentage points above the national rate of 54.2%.

At Polk County Sheriff, 2 of 4 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 50% of this agency's fallen.

Polk County Sheriff
2
of 4 officers
50% Felonious
IA — Statewide
129
of 226 officers
57.1% 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. Dewey Marshall'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 Dewey Marshall Compares

Offender Outcome

Paroled in 1960

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Dewey Marshall is highlighted in Oct.

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. Dewey Marshall was killed by shotgun.

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

Incident Location