@cicerone imposter,
Humphrey Davy -Invented electrochemisty to separate calcium, potassium, boron, etc into elemental forms. Also named nitrous oxide "laughing gas". Also the figure my elementary school was named after-they've since changed the name to honor a local judge/politician.
Oddly, in the years I was there I never noticed his name was spelled Humphry and not Humphrey-of course, I graduated when I was 12.