Casimir Creuly was in the military and carried out a large part of his service in Africa. Following his retirement, in 1859, he became one of the most active members of the Commission de Topographie des Gaules. In 1873, he was appointed the commission’s vice-president. His work was largely focused on Latin epigraphy. Some of his work was reproduced as epigraphic plates for display at the musée gallo-romain.