CALVERT, the name of three English artists : CHARLES (1785-1852), a well-known landscape painter; EDWARD (1803 1883) , an important wood-engraver and follower of Blake; and FREDERICK, an excellent topographical draughtsman, whose work in water-colour is represented at the Victoria and Albert Museum, London, and who published a volume of Picturesque Views in Staffordshire and Shropshire (1830).