Jessop; William (1745-1814); Canal and railway engineer; worked on the Cromford Canal, Derbyshire.
Outram; Benjamin (1764-1805); English civil engineer, surveyor and industrialist; pioneer in the building of canals and tramways. Born Alfreton; founded the Butterley Company and lived at Butterley Hall.
Ripley; Butterley Company; 1790-2009; iron manufacture, engineeing, colliery and brick company
Harpur Crewe family of Calke