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| Chemist Robert Boyle portrait (c1690) after Johann Kerseboom at National Portrait Gallery. London, United Kingdom. | Physicist Sir Isaac Newton portrait (1702) by Sir Godfrey Kneller at National Portrait Gallery. London, United Kingdom. | Astronomer Edmond Halley portrait (c1722) by Richard Phillips at National Portrait Gallery. London, United Kingdom. | Astronomer Sir William Herschel portrait (1785) by Lemuel Francis Abbott at National Portrait Gallery. London, United Kingdom. |
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| Mathematician William Jones (introduced ?) portrait (1740) by William Hogarth at National Portrait Gallery. London, United Kingdom. | Botanist Sir Hans Sloane portrait (1736) by Stephen Slaughter at National Portrait Gallery. London, United Kingdom. | Biological explorers Mai, Sir Joseph Banks & Daniel Solander portrait (1775-6) by William Parry at National Portrait Gallery. London, United Kingdom. | Polynesian Mai portrait (c1776) by Sir Joshua Reynolds at National Portrait Gallery. London, United Kingdom. |
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| Evolutionist Charles Darwin portrait (1883) by John Collier at National Portrait Gallery. London, United Kingdom. | Ceramic inventor Josiah Wedgwood jasperware portrait (1922 based on painting of 1782) at National Portrait Gallery. London, United Kingdom. | Sir Richard Arkwright (inventor of cotton spinning machine) portrait (1783-5) by Joseph Wright of Derby at National Portrait Gallery. London, United Kingdom. | James Brindley (builder of first British canals) portrait (1770) by James Brindley at National Portrait Gallery. London, United Kingdom. |
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| John Loudon McAdam (inventor of road building of crushed stone) portrait (c1830) by unknown at National Portrait Gallery. London, United Kingdom. | Steam engineer James Watt portrait (1792) by Carl Fredrik von Breda at National Portrait Gallery. London, United Kingdom. | George Stephenson (built first public railway) portrait (c1845) by Henry William Pickersgill at National Portrait Gallery. London, United Kingdom. | Robert Stephenson (built Rocket locomotive) portrait (c1846) by John Lucas at National Portrait Gallery. London, United Kingdom. |
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| Sir Marc Isambard Brunel (noted for Thames Tunnel of 1843) portrait (c1836) by Samuel Drummond at National Portrait Gallery. London, United Kingdom. | Isambard Kingdom Brunel (noted for Clifton Suspension Bridge & Great Western Railway plus steam ships) portrait (c1857) by John Callcott Horsley at National Portrait Gallery. London, United Kingdom. | Isambard Kingdom Brunel (noted for SS Great Eastern) photograph (1857) by Robert Howlett at National Portrait Gallery. London, United Kingdom. | John Dalton (noted for theory of atomic behavior) portrait (1836) by Thomas Phillips at National Portrait Gallery. London, United Kingdom. |
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| Michael Faraday (noted for relationship between electricity & magnetism plus inventing first electric motor) portrait (1841-2) by Thomas Phillips at National Portrait Gallery. London, United Kingdom. | Chemist Sir Humphry Davy (noted for isolating several atomic elements) portrait (1821) by Thomas Phillips at National Portrait Gallery. London, United Kingdom. | Charles Babbage (noted for design of first computer) portrait (1845) by Samuel Laurence at National Portrait Gallery. London, United Kingdom. | Ada Lovelace (considered first computer programmer) portrait (1836) by Margaret Sarah Carpenter at National Portrait Gallery. London, United Kingdom. |
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| Mission of Mercy: Florence Nightingale receiving Wounded at Scutari painting (1857) by Jerry Barrett at National Portrait Gallery. London, United Kingdom. | Florence Nightingale (nurse promoter of hospital hygiene in Crimean War) bronze bust (1859-62) by Sir John Robert Steell at National Portrait Gallery. London, United Kingdom. | Joseph Lister (explored used of carbolic acid to prevent surgical infections) bronze bust (1927) by Sir Thomas Brock at National Portrait Gallery. London, United Kingdom. |
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