Person ? G. Dyckhoff
- From 1917-01-01 to 1917-12-31, Administrateur of FRANCO-WYOMING OIL COMPANY
- From 1917-01-01 to 1927-12-31, Administrateur of HUELVA COPPER AND SULPHUR MINES LTED
- From 1923-01-01 to 1927-12-31, Administrateur of SOCIETÉ DES PLANTATIONS DE CAOUTCHOUC DE KALITENGAH