Napoleon Sarony (1821-1896), Henry B. Major and Joseph Fairchild Knapp (1832-1891) founded the Sarony, Major & Knapp publishing firm in 1857. The firm specialized in portraits, government reports, book illustrations, and architectural and scientific plates. Sarony, Major and Knapp remained in business for ten years finally closing its doors in 1867 when Napoleon Sarony left the firm to follow his interest in photography. In addition to their public sector business, the firm also printed most official maps of New York City, including, between 1860 and 1867, some of earliest maps of Central Park.