| Name | Daniel Hartnett |
| Agency | Chicago Fire Department |
| Rank | Truckman |
| Type of Firefighter | Career |
| Age Range | [Unknown] |
| Sex | Male |
| Date of Birth | 0/0/0 |
| Date of Death | 7/12/1877 |
| Cause of Death | Thrown from vehicle |
| Nature of Death | Trauma |
| Attribute of Death | [not applicable] |
| Type of Duty | Responding to/returning from incident |
| Incident Name | N/A |
| Incident City | Chicago |
| Incident State | IL |
| Incident Date | 7/12/1877 |
| Incident Location | Street/Road |
| Incident Attribute | Traffic accidents |
On July 12, 1877, Driver Daniel Hartnett of Hook and Ladder Company No. 4 of the Chicago Fire Department died after being thrown from an apparatus while responding to an alarm.