On December 18, 1972, shortly after Joe became U.S. senator-elect, Neilia was driving with her three children west along rural Valley Road in
Hockessin, Delaware. At the intersection with
Delaware Route 7 (Limestone Road), their vehicle pulled out in front of a
tractor-trailer truck traveling north along Route 7 and was struck by it. Police determined that Neilia had driven into the path of the tractor-trailer. The truck driver, identified as Curtis C. Dunn, aged 47, of
Avondale, Pennsylvania, escaped without any major injury (he died in 1999). All four occupants of Biden’s vehicle were taken to
Wilmington General Hospital, where Neilia and Naomi were pronounced dead on arrival. Three-year-old Beau and two-year-old Hunter were treated for non-life-threatening injuries, Beau with a broken leg and other wounds, and Hunter with a minor skull fracture and other head injuries. Two weeks after the crash, Joe was sworn into the
Senate at the hospital where his two sons were being treated. == Legacy ==