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"In 1966, while in law school, Biden married Neilia Hunter. They had three children, Joseph R. 'Beau' Biden III, Robert Hunter, and Naomi Christina ('Amy'). His wife and infant daughter died in a car accident shortly after he was first elected to the Senate in 1972. His two sons, Beau and Hunter, were seriously injured in the accident, but both eventually made full recoveries.
Biden was sworn into office from their bedside. Persuaded not to resign in order to care for them, Biden began the practice of commuting an hour and a half each day on the train from his home in the Wilmington suburbs to Washington, D.C., which he continues to do."
http://en.wikipedia.org/wiki/Joe_Biden#Early_life_and_family
So do millions of Americans.