Capt. Bernard J. Hoppe of the Boston Traffic squad. He made Captain on Thanksgiving, 1920 by Commissioner Curtis

Motorcycle cops with their vehicles |
Motorcycle cops, Boston Common |
Motorcycles and sidecars on Beacon Street, Boston Police Parade |
Police Boat SS Stephen O'Meara launches to take the place of the SS Guardian |
Boston Police Parade |
Police mount guard over own arsenal. L-R: John H. Cloran / Francis J. McNeil / Edward J. Siebold. |