Career
Between 1964 and 1982, he refereed a total of 161 games in the Fußball-Bundesliga, Germany"s top football league. He refereed the DFB-Pokal final between Football Club Bayern Munich and 1. Football Club Nuremberg in 1982.
Hennig is also Chairman referee of the region Duisburg – Mülheim – Dinslaken and lives in Duisburg.
