Career
Dörnemann was born in Essen. Dörnemann was recognized by the German government as Germany"s oldest person for half a year, following the death of fellow 111-year-old Lina Zimmer on 28 August 2004, until his death in Düsseldorf. He remains the oldest verified German-born man ever.
Dörnemann credited his longevity to drinking "a beer a day.".
