Casilear was born in New York City (1811 – August 1893) . His first training was under prominent New York engraver Peter Maverick in the 1820s, then with Asher Durand, himself an engraver at the time. Casilear and Durand became friends, and both worked as engravers in New York through the 1830s. By the middle 1830s Durand had become interested in landscape painting through his friendship with Thomas Cole. Durand, in turn, drew Casilear's attention to painting. Casilear slowly developed his talent in landscape painting in the style that was later to become known as the Hudson River School. By the middle 1850s he had entirely stopped his engraving career in favor of painting full-time. He was elected a full member of the National Academy of Design in 1851, having been an associate member since 1833, and exhibited his works there for over fifty years.
American paradise: the world of the Hudson River school, an exhibition catalog from The Metropolitan Museum of Art .