Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,470 pages of information and 233,895 images on early companies, their products and the people who designed and built them.
Brief obituary here (in French).
Born in Paris 11 March 1824. Graduated from Arts et Métiers (Angers, class of 1841). Started out as a mechanic at Saulnier, then at the Kientzy workshops, and at John Penn's office in Lewisham. He then moved to Australia where he became a gold mining engineer at Bendigo, then he ran a machine building workshop for factories and shipping. On his return to France, he collaborated with Niaudet in the workshops of the Maison Breguet, where he became a consulting engineer. He filed numerous patents. Died in Paris in November 1898. 
A model of a marine oscillating engine by Raffard, 1849, is on display at the Musee des Arts et Metiers. Inv. No. 8173.