August, 1939:
J.E.F. de Kok (Fritz de Kok) Royal Dutch Shell
James M. de Booy, Group Managing Director, Royal Dutch Shell Group
1930’s: Guss Kessler, Group Managing Director, Royal Dutch Shell Group
Jean Baptiste August “Guus” Kessler Jr.
Frederik Carel Gerretson, Fascist Secretary of Sir Henri Deterding, Director General of Royal Dutch Shell
Frederik Carel Gerretson, Fascist Secretary of Sir Henri Deterding, Director General of Royal Dutch Shell.
1939: Directors and Management of Rhenania-Ossag: Declassified US Intelligence Document
U.S. DECLASSIFED INTELLIGENCE DOCUMENT ON SHELL’S GERMAN OPERATING COMPANY
OSS Washington Secret Intelligence/Special Funds Records, 1942-1946 › Washington Office, Special Funds Division Finance, Intelligence (WASH-SPDF-INT) › WASH-SPDF-INT-1: Documents 2933-2950 › Page 176
Wilhelm Rudeloff.