"Paul Camille Denis, later von Denis, (28 June 1796 – 3 September 1872) was an engineer, railway pioneer and participant in the Hambach Festival, the German political protest of 1832.
Denis was at Château des Saales in Montier-en-Der, in the Département of Haute-Marne, France. He grew up as a child of the Mainz city councillor, Peter Denis, and attended the Lyceum Louis le Grand in Paris. In 1814 and 1815 he studied at the École Polytechnique in Paris. After the conclusion of his studies he returned to the Palatinate to his father who had since settled at Neustadt.
Initially employed as a trainee by the Bavarian state - to which the Palatinate then belonged - from 3 March 1816 he worked as a construction overseer (Baukondukteur) in Germersheim. In 1822 he became an engineering inspector at Speyer and, in 1826, was promoted to engineer, first class, at Zweibrücken." - (en.wikipedia.org 31.01.2020)
