Photography workshop founded by Louis Joseph GHEMAR (1819 - 1873) and his half-brother Léon Louis AUVERLEAUX (1832 - 1869). On the death of Louis Joseph GHEMAR, the studio keeps the name: "Ghémar frères" until 1894, when the Géruzet brothers bought the fund. Adresses: 27 rue de l'Écuyer, 1859-1890, Brussels. 31 rue de l'Écuyer, 1891-1894, Brussels.