New York City Police Department, New York
End of Watch: Thursday, December 9, 1920
Age: 44
Tour of Duty: Not available
Badge Number: 5630
Cause of Death: Drowned
Date of Incident: December 9, 1920
Weapon Used: Not available
Suspect Info: Not available
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.