David Bowie | David Lynch | David | Late Show with David Letterman | David Cameron | David Beckham | David Lloyd George | David Hume | David Hockney | David Letterman | David Byrne | David J. Eicher | David Mamet | David Foster | Late Night with David Letterman | David Ben-Gurion | Jacques-Louis David | David Guetta | David Carradine | Henry David Thoreau | David Tennant | David Niven | David Essex | David A. Stewart | David Sanborn | David Livingstone | David Garrick | David Crosby | David Attenborough | David Souter |
Many outstanding engineers trained in his workshop, including Richard Roberts, David Napier, Joseph Clement, Sir Joseph Whitworth, James Nasmyth (inventor of the steam hammer), Joshua Field and William Muir.
John began his apprenticeship as an engineer under David Napier at Camlachie.