Volume 10 of the biographical series «Stories of Photographers» which was born in 2018, tells the story of an amateur photographer (all the previous volumes spoke of professionals): the works of Jean François Charles André Flachéron, known as Frédéric, are well-known, universally recognized for their high technical level, and of considerable economic value, but until today we knew little or nothing of his life and the information available in literature and on the web is not always correct. Frédéric's photographic activities are limited to a few years, however, he was a respected sculptor and engraver of medallions who for a number of years, with his wife Caroline-Charlotte Hayard, ran a shop selling materials for painting and sculpture in Piazza di Spagna, in Rome. Flachéron developed a chemical procedure (amended with regard to that of Fox Talbot and of Blanquart-Evrard) that became a benchmark for all those, professionals and amateurs, who wanted to photograph Rome in particular conditions of lighting and weather: the amended "Roman method" or "Flachéron method" was demonstrated particularly in the years 1849 to 1853 (he was active in the period 1847-1853).