Mark Israel Sensenbach
Agency patch
Sheriff

Mark Israel Sensenbach

Lehigh County Sheriff's Office — Allentown, PA
Felonious
End of Watch September 8, 1926
Age 38
The Vigil Panel 51 ›
Gender Male

Incident

Sheriff Mark Sensenbach and Deputy Harry Siegfried were shot and killed in Weisenberg Township while attempting to arrest a man for failing to pay a $2 fine for not sending his children to school. When the officers arrived at the farmhouse the man's wife told them he was not home but would not cooperate. As they began searching the property they observed the man walk into the woodline holding a gun. Sheriff Sensenbach called for assistance from the Allentown Police Department and several officers responded. As the Allentown officers arrived at the scene the man approached them and opened fire. Deputy Siegfried and Sheriff Sensenbach were killed and one of the Allentown officers was wounded during the initial shooting before the man barricaded himself in his home. The man was shot and killed by a posse as he attempted to flee into the woods after the posse set the house on fire. Sheriff Sensenbach was survived by his wife, son, and brother. He is buried in Union West End Cemetery.

Survivors

Sheriff Sensenbach was survived by his wife, son, and brother.

In Our Keeping

Permanent identifier
BO-US-PA-ED06D119
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.
Sheriff Sensenbach served with the Lehigh County Sheriff's Office.
Thank you for your service to the Allentown community. Gone but never to be forgotten.
Rest easy, Sheriff Sensenbach.

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

Agency

Type Sheriff's Office
Location Allentown, Lehigh County, PA
Platform Identity lcso.lehigh.pa.us.gov.nw

Service Record

End of Watch September 8, 1926
Age 38
Gender Male

Incident Details

Cause Felonious
Weapon Shotgun

Sheriff Mark Israel Sensenbach 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 PA, 597 of 1,261 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 47.3% of this state's fallen. That is 47.3 percentage points above the national rate of 0%.

At Lehigh County Sheriff's Office, 3 of 5 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 60% of this agency's fallen.

Lehigh County Sheriff's Office
3
of 5 officers
60% Felonious
PA — Statewide
597
of 1,261 officers
47.3% Felonious
Nationwide
1
of 97,772 officers
0% Felonious

National Cause Distribution

How Felonious compares to all causes of officer death in the memorial record. Mark Israel Sensenbach's cause is highlighted.

Felonious
1 (0%)
Accident
1 (0%)
Illness
1 (0%)
Cardiac
1 (0%)
Undetermined
1 (0%)
Suicide
1 (0%)

How Mark Israel Sensenbach Compares

Age at Death
38
This officer
Avg for Felonious: 39.0 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Mark Israel Sensenbach is highlighted in Sep.

Jan
1,392
Feb
1,295
Mar
1,373
Apr
1,516
May
1,504
Jun
1,442
Jul
1,587
Aug
1,517
Sep
1,491
Oct
1,371
Nov
1,447
Dec
1,624

Weapons Used Against Officers

Most common weapons in felonious officer deaths. Mark Israel Sensenbach was killed by shotgun.

Handgun
3,684
Gun
3,592
Gun; Unknown type
1,492
Shotgun
1,109
Rifle
935
Officer's handgun
909