|H. Cassinelli was an obscure French artist working in Le Havre during the mid-nineteenth century. From the few accounts in which he is mentioned he is known to have been primarily a watercolorist. He was also accomplished at creating graphite and charcoal drawings. His known works show a familiarity with ship technology and an above average understanding of marine atmosphere and weather. This presents the strong possibility of his having been a seaman, gaining his maritime knowledge through first hand experience.