Person ? Guillermo de Landa Y Escandon
- From 1912-01-01 to 1912-12-31, Administrateur of COMPAGNIE MINIERE "LAS DOS ESTRELLAS"
- From 1912-01-01 to 1917-12-31, Administrateur of Mexico Mines of el Oro Ltd
- From 1917-01-01 to 1917-12-31, Administrateur of COMPANIA DE MINAS LA BLANCA Y ANEXAS
- From 1923-01-01 to 1923-12-31, Administrateur of COMPAGNIE MINIERE "LAS DOS ESTRELLAS"
- From 1923-01-01 to 1923-12-31, Administrateur of Mexico Mines of el Oro Ltd
- From 1927-01-01 to 1927-12-31, Administrateur of COMPAGNIE MINIERE "LAS DOS ESTRELLAS"
- From 1927-01-01 to 1927-12-31, Administrateur of Mexico Mines of el Oro Ltd