Henri Fayol, a French engineer and director of mines, was little unknown outside France until the late 40s when Constance Storrs published her translation of Fayol's 1916 " Administration Industrielle et Generale ".
Fayol's career began as a mining engineer. He then moved into research geology and in 1888 joined, Comambault as Director. Comambault was in difficulty but Fayol turned the operation round. On retirement he published his work - a comprehensive theory of administration - described and classified administrative management roles and processes then became recognised and referenced by others in the growing discourse about management. He is frequently seen as a key, early contributor to a classical or administrative management school of thought (even though he himself would never have recognised such a "school").
His theorising about administration was built on personal observation and experience of what worked well in terms of organisation. His aspiration for an "administrative science" sought a consistent set of principles that all organizations must apply in order to run properly.