- Kingman Fire Department
- Age: 52
- Year of Death: 1973
William Casson, whose sons became volunteer firefighters with the Kingman Fire Department, was a Kingman native and World War II veteran, the district manager of the electric division of a local utilities company, and Captain Number One in the Fire Department, having been an assistant chief and chief. Eleven acclaimed firefighters, two members and nine volunteers of the Kingman Fire Department died as a result of a disastrous fire and explosion that ripped apart a railroad tanker car filled with propane gas as it was being off-loaded.
This firefighter line of duty fatality occurred before the National Fallen Firefighters Memorial was built in Emmitsburg, Maryland. While this firefighter has not been officially honored at the Memorial site, there are plans to do so when resources are available.