 Henry Jr. ran IBC for four years until he quit to help his five sons Anton, Henry, Raymond, Edward and Robert found Griesedieck Brothers Brewery Co. in 1911.GB made non-alcoholic beer and soft drinks during Prohibition, but closed its doors by 1920.For the next 13 years, the Griesedieck Brothers would anxiously bide their time before they could once again brew what would become the most popular beer in St. Louis.