Johann Friedrich Agricola was born on January 4, 1720 and died on December 2, 1774. Johann Friedrich Agricola would have been 54 years old at the time of death or 292 years old today.
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Johann Friedrich Pfaff was born on December 22, 1765 and died on April 21, 1825. Johann Friedrich Pfaff would have been 59 years old at the time of death or 246 years old today.
Johann Friedrich Blumenbach was born on May 11, 1752 and died on January 22, 1840. Johann Friedrich Blumenbach would have been 87 years old at the time of death or 260 years old today.