| Name | Hans Jacobsen |
| Agency | Chicago Fire Department |
| Rank | Lieutenant |
| Type of Firefighter | Career |
| Age Range | 41 to 45 |
| Sex | Male |
| Date of Birth | 0/0/0 |
| Date of Death | 7/22/1946 |
| Cause of Death | Stress/Overexertion , Contact/Exposure |
| Nature of Death | Heart attack |
| Attribute of Death | Smoke inhalation |
| Type of Duty | Firefighting operations |
| Incident Name | N/A |
| Incident City | Chicago |
| Incident State | IL |
| Incident Date | 7/22/1946 |
| Incident Location | Residential |
| Incident Attribute | Fires |
On July 22, 1946, Chicago Fire Department Lieutenant Hans Jacobsen of Engine 50 suffered a fatal heart attack in the line of duty. Jacobsen was overcome by smoke and collapsed while fighting a rooming house fire on S. State Street.
Citations:
“Heart Attack Kills Fireman Fighting Blaze,” Chicago Daily Tribune, July 23, 1946.