4 attacks recorded (1 fatal)
| Date | Country | Region | Location | Fatal? | |
|---|---|---|---|---|---|
| May 3rd 1939 | USA | Atlantic Ocean | At sea, several hundred miles south east of Cape Henry, Virginia | Y | |
| Jul 14th 1939 | USA | Texas | West Bay, 19 miles from Galveston | N | |
| Aug 1st 1939 | USA | California | Off San Pedro | N | |
| Oct 4th 1939 | USA | Hawaii | Kane'ohe Bay, Mokapu, O'ahu | N |