The following are all famous scientists with clues given by their notable inventions:
Demo Astonish (Light Bulb/Motion Picture Camera)
Thomas Edison
Oil Gale (Made improvements on the Telescope)
Galileo
Jolt Hurtle (Seed drill and horse-drawn hoe)
Jethro Tull
Uncle Will Mail (Basis of first refridgerator)
William Cullen
Tamest Jaw (Improved on Newcomen's Steam Engine)
James Watt