Otto Alleman
From Conservapedia
Otto Alleman was an American chemist who worked for Du Pont Chemical Corp. DuPont participated from 1943 in the Manhattan project. Before 1945, Alleman was a contact of the KGB officer Gaik Ovakimian. In 1945 Alleman was working for an import company and suspected by the FBI of assisting the transfer of funds for Soviet intelligence.[1][2]