Frederick North was born on April 13, 1732 and died on August 5, 1792. Frederick North would have been 60 years old at the time of death or 280 years old today.
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Frederick Gowland Hopkins was born on June 20, 1861 and died on May 16, 1947. Frederick Gowland Hopkins would have been 85 years old at the time of death or 150 years old today.
Frederick Stanley was born on January 15, 1841 and died on June 14, 1908. Frederick Stanley would have been 67 years old at the time of death or 169 years old today.