Frederick W. Fieldstrup
Assistant City Marshal

Frederick W. Fieldstrup

San Antonio Police Dept. — San Antonio, TX
Felonious
End of Watch May 29, 1857
The Vigil Panel 2 ›
Gender Male

Incident

Assistant City Marshal Fieldstrup was shot and killed on the corner of Market Street and Alamo Street in a shoot-out with a notorious gambler and two of his companions. Marshal Fieldstrup and the two companions were killed in the shoot-out.

In Our Keeping

Permanent identifier
BO-US-TX-CE2C18DB
Stewardship
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Added to badge.nw
April 2, 2026
Last updated
July 23, 2026

Honored here by 1 sentinel - 1 tribute.

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Tributes

169 years is a long time for a name to go unread. Not today.
Assistant City Marshal Fieldstrup served with the San Antonio Police Department.
Thank you for your service to the San Antonio community. Gone but never to be forgotten.

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

Agency

Location San Antonio, TX
Platform Identity sapd.bexar.tx.us.gov.nw

Service Record

End of Watch May 29, 1857
Gender Male

Incident Details

Cause Felonious
Weapon Gun; Unknown type
Offender Not available

Assistant City Marshal Frederick W. Fieldstrup 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 San Antonio Police Dept., 40 of 64 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 62.5% of this agency's fallen.

San Antonio Police Dept.
40
of 64 officers
62.5% Felonious
TX — Statewide
1,463
of 2,421 officers
60.4% 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. Frederick W. Fieldstrup'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 Frederick W. Fieldstrup Compares

Offender Outcome

Not available

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Frederick W. Fieldstrup is highlighted in May.

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. Frederick W. Fieldstrup was killed by gun; unknown type.

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