Morden, Robert The North Riding of Yorkshire. Sold by Abel Swale et al, [c. 18th c.]. and Darbyshire. Sold by Abel Swale et al, [c. 18th c.] County maps from Camden's Britannia, sometime hand-coloured. Morden was noted for a simplified approach to map-making (in comparison to predecessors like Speed and Blaeu) emphasising clarity over decoration.