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http://en.wikipedia.org/wiki/Franklin_Pierce#Beginnings

Two months before he took office on January 6, 1853, shortly after boarding a train in Boston, president-elect Pierce and his family were trapped in a derailed car when it rolled over an embankment near Andover, Massachusetts. Pierce and his wife survived and were merely shaken up, but they watched as their 11-year-old son Benjamin ("Bennie") was crushed to death.

William Rufus King, his vice-president, died on April 18th in OTL. So WI Pierce had not survived the accident?
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