Patrolman Daniel J. Grennan

Patrolman Daniel J. Grennan

New York City Police Department, New York

End of Watch Thursday, December 9, 1920

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Daniel J. Grennan

Patrolman Daniel Grennan drowned when he fell into the Gowanas Canal while on foot patrol.

His body was not recovered until March 4th, 1921.

Patrolman Grennan was assigned to the Hamilton Avenue Precinct. He was survived by his wife and son.


  • Age 44
  • Tour Not available
  • Badge 5630

Incident Details

  • Cause Drowned

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Patrolman Grennan,
On today, the 95th anniversary of your death I would just like to say thank you for your service and sacrifice for the citizens of New York City.


United States Border Patrol

December 9, 2015

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