POIRIER was a fench ptotographer with atelier in Bordeaux. In 1860 he comes to Porto, Portugal, and he says in a portuguese newspaper ("Commercio do Porto (O)", Nº 139, 20 June 1860, Pag. 4) that is the second time, after 15 years. He participate in a exhibition in Porto - Exposição da ACADEMIA PORTUENSE das BELLAS ARTES,1860.
Someone have more information about his french photographer, that he works also in is atelier, rua do Bomjadim nº. 20 Porto, Portugal?