 Because of a lung weakness, Henry (Enrique) Doetsch went (after a short time in Liverpool) as a young man of 23 years to Sevilla in Spain, where he entered with the help of his cousin, Moritz Willmar-Doetsch from Frankfurt/Main, as volunteer a British company.A few years later he was founder of the »Firma Sundheim y Doetsch« in Huelva (1865) with his compagnon Guillermo Sundheim (1840 - 1903).In 1873 Doetsch was the director of the Rio Tinto Company Limited, (RTCL), (Minas de Río Tinto), in London and Huelva.