In 1974, as a young senator and recent widower (his first wife Neilia and their baby daughter Naomi had died in a car accident in 1972), Biden purchased this former DuPont mansion in tony Greenville for $185,000. He nicknamed the 10,000-square-foot house 'The Station,' and it became the campaign headquarters for his first presidential run in 1988. In 1996, Biden sold the house for $1.2 million.