William Mateer
Agency patch
Patrolman

William Mateer

Accident
End of Watch January 10, 1909
The Vigil Panel 23 ›
Gender Male

Incident

Patrolman William Mateer drowned while attempting to rescue a fisherman who had fallen through the ice on Ponkapoag Pond in Canton. The fisherman also drowned in the incident.

In Our Keeping

Permanent identifier
BO-US-MA-1D82A19B
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 never knew you. I am standing here anyway.
Patrolman Mateer served with the Metropolitan Police Department.
Thank you for your service to the Boston community. Gone but never to be forgotten.
Rest easy, Patrolman Mateer.

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

Agency

Location Boston, MA
Platform Identity mpd.suffolk.ma.us.gov.nw

Service Record

End of Watch January 10, 1909
Gender Male

Incident Details

Cause Accident

Patrolman William Mateer 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 MA, 158 of 469 officers were lost to accidents in the line of duty — 33.7% of this state's fallen. That is 2.7 percentage points above the national rate of 31%.

At Metropolitan Police Department, 7 of 12 officers on record were lost to accidents in the line of duty — 58.3% of this agency's fallen.

Metropolitan Police Department
7
of 12 officers
58.3% Accident
MA — Statewide
158
of 469 officers
33.7% 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. William Mateer'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 William Mateer Compares

When Accident Deaths Occur

Monthly distribution of Accident deaths across the full memorial record. William Mateer 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