Sidney Thomas Sullivan
Agency patch
Sergeant

Sidney Thomas Sullivan

Chicago Police Department — Chicago, IL
Accident
End of Watch January 31, 1937
Age 49
Tour of Duty 23 yrs
The Vigil Panel 72 ›
Gender Male

Incident

Sergeant Sidney Sullivan was struck and killed by a vehicle on Roosevelt Road in Hillside, one-half mile west of Wolf Road, after his car slid into a ditch on Roosevelt Road, near York Road, in DuPage County.

He was on his way to interview an informant about a recent rash of taxicab robberies in the Desplaines Street District. He struck a patch of ice and slid into the ditch. As he began walking to get help and was about two miles from the scene of the crash when he was struck by another car that slid on the ice.

Sergeant Sullivan served with the Chicago Police Department for 23 years and was assigned to the Desplaines Street Station.

Survivors

He is survived by his wife, son, daughter, and brother.

In Our Keeping

Permanent identifier
BO-US-IL-32746546
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

23 years. You could have gone home.
Sergeant Sullivan gave the Chicago Police Department 23 years. Still answering calls at the end.
Thank you for your service to the Chicago community. Gone but never to be forgotten.
Rest easy, Sergeant Sullivan.

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

Agency

Location Chicago, IL
Platform Identity cpd.cook.il.us.gov.nw

Service Record

End of Watch January 31, 1937
Tour of Duty 23 yrs
Age 49
Gender Male

Incident Details

Cause Accident

Sergeant Sidney Thomas Sullivan is one of 10,088 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,508 officers honored here.

In IL, 354 of 1,318 officers were lost to accidents in the line of duty — 26.9% of this state's fallen. That is 4.1 percentage points below the national rate of 31%.

At Chicago Police Department, 107 of 571 officers on record were lost to accidents in the line of duty — 18.7% of this agency's fallen.

Chicago Police Department
107
of 571 officers
18.7% Accident
IL — Statewide
354
of 1,318 officers
26.9% Accident
Nationwide
10,088
of 32,508 officers
31% Accident

National Cause Distribution

How Accident compares to all causes of officer death in the memorial record. Sidney Thomas Sullivan'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 Sidney Thomas Sullivan Compares

Age at End of Watch
49
This officer
Avg for Accident: 38.1 years
Years of Service
23
This officer
Avg for Accident: 9.1 years

When Accident Deaths Occur

Monthly distribution of Accident deaths across the full memorial record. Sidney Thomas Sullivan is highlighted in Jan.

Jan
820
Feb
730
Mar
748
Apr
707
May
847
Jun
795
Jul
897
Aug
937
Sep
913
Oct
925
Nov
872
Dec
897

Incident Location